13758939 has 6 divisors (see below), whose sum is σ = 19874036. Its totient is φ = 9172620.

The previous prime is 13758937. The next prime is 13758949. The reversal of 13758939 is 93985731.

It is a happy number.

13758939 is a `hidden beast` number, since 1 + 37 + 589 + 39 = 666.

It is not a de Polignac number, because 13758939 - 2¹ = 13758937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13758894 and 13758903.

It is not an unprimeable number, because it can be changed into a prime (13758937) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 764377 + ... + 764394.

Almost surely, 2^13758939 is an apocalyptic number.

13758939 is a deficient number, since it is larger than the sum of its proper divisors (6115097).

13758939 is a wasteful number, since it uses less digits than its factorization.

13758939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528777 (or 1528774 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 13758939 is about 3709.3043822259. The cubic root of 13758939 is about 239.6228973670.

The spelling of 13758939 in words is "thirteen million, seven hundred fifty-eight thousand, nine hundred thirty-nine".