13937913 has 20 divisors (see below), whose sum is σ = 22715088. Its totient is φ = 8446680.

The previous prime is 13937851. The next prime is 13937921. The reversal of 13937913 is 31973931.

It is not a de Polignac number, because 13937913 - 2⁸ = 13937657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13937923) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6931 + ... + 8712.

Almost surely, 2^13937913 is an apocalyptic number.

It is an amenable number.

13937913 is a deficient number, since it is larger than the sum of its proper divisors (8777175).

13937913 is a wasteful number, since it uses less digits than its factorization.

13937913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15666 (or 15657 counting only the distinct ones).

The product of its digits is 15309, while the sum is 36.

The square root of 13937913 is about 3733.3514434085. The cubic root of 13937913 is about 240.6574162883.

The spelling of 13937913 in words is "thirteen million, nine hundred thirty-seven thousand, nine hundred thirteen".