14639 has 2 divisors, whose sum is σ = 14640. Its totient is φ = 14638.

The previous prime is 14633. The next prime is 14653. The reversal of 14639 is 93641.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14639 is a prime.

It is a plaindrome in base 8.

It is a nialpdrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7319 + 7320.

It is an arithmetic number, because the mean of its divisors is an integer number (7320).

2¹⁴⁶³⁹ is an apocalyptic number.

14639 is a deficient number, since it is larger than the sum of its proper divisors (1).

14639 is an equidigital number, since it uses as much as digits as its factorization.

14639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 14639 is about 120.9917352549. The cubic root of 14639 is about 24.4626670061.

The spelling of 14639 in words is "fourteen thousand, six hundred thirty-nine".