Number Gossip

(Enter a number and I'll tell you everything you wanted to know about it but were afraid to ask.)

Unique Properties of 439

  • 439 is the smallest prime for which inserting the same digit between every pair of digits never yields another prime (40309, 41319, 42327, 43339, 44349, 45359, 46369, 47379, 48389, and 49399 are all composite)
  • 439 the smallest prime p such that the sum of three consecutive prime numbers, beginning with p, is a cube

Common Properties of 439

Deficient
Odd
Odious
Prime
Square-free