In honor of my 39th birthday, here are 39 fun facts about the number 39:

- 39 is the natural number following 38 and preceding 40.
- 39 is an odd number.
- 39 is a composite number.
- 39 is a deficient number.
- 39 is an evil number.
- 39 is a perfect totient number.
- 39 is a Perrin number.
- 39 is a Størmer number.
- The 4 factors of 39 are 1, 3, 13, and 39.
- The square root of 39 is about 6.44998.
- 39 is the twelfth distinct semiprime number.
- 39 is the sum of consecutive prime numbers.
- 39 is the sum of the first 3 powers of 3.
- 39 is the smallest natural number which has three partitions into three parts.
- The F26A graph is a symmetric graph with 39 edges.
- 39 is the number of mentions of work or labor in the Torah.
- “39” is a track on Queen’s album
*A Night At the Opera*. - 39 is the atomic number for yttrium.
- The Messier object M39 is a magnitude 5.5 open cluster in the constellation Cygnus.
- The New General Catalogue object NGC 39 is a spiral galaxy in the constellation Andromeda.
- “39” is a song by The Cure on their album
*Bloodflowers*. - 39 is the number of statements on Anglican doctrine.
- 39 is the actual number of lashes given by the Sanhedrin to a person meted the punishment of 40 lashes.
- 39 is the number of categories of activity prohibited on Shabbat according Jewish religious law.
- There are 39 books in the Old Testament according to the Protestant Canon.
- Roman Emperor Titus Flavius was born in the year 39 A.D.
- The Roman numeral for 39 is XXXIX.
- There were 39 signers of the United States Constitution.
- James Earl Carter, Jr. was the 39th president.
- I-39 is the U.S. Interstate Highway from Normal, Illinois to Wausau, Wisconsin.
- 39 is Japanese Internet chat slang for “thank you” when written with numbers (3 is “san”, 9 is “kyu”).
- In Afghanistan, the number 39 is considered unlucky, due to the belief that it is associated with pimps.
- “The Thirty-Nine Steps” is the title of a John Buchan novel and several subsequent films.
- 39 is the number of the French department Jura.
- Pope Anastasius I was the 39th pope.
- North Dakota was the 39th state to be admitted to the Union.
- 39 is the calling code assigned to Italy.
- 39 is the retired jersey number of former baseball player Roy Campanella.
- 39 in binary is 100111.