13915864 has 8 divisors (see below), whose sum is σ = 26092260. Its totient is φ = 6957928.

The previous prime is 13915859. The next prime is 13915873. The reversal of 13915864 is 46851931.

13915864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 869734 + ... + 869749.

Almost surely, 2^13915864 is an apocalyptic number.

It is an amenable number.

13915864 is a deficient number, since it is larger than the sum of its proper divisors (12176396).

13915864 is a wasteful number, since it uses less digits than its factorization.

13915864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739489 (or 1739485 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 13915864 is about 3730.3972978759. The cubic root of 13915864 is about 240.5304471144.

The spelling of 13915864 in words is "thirteen million, nine hundred fifteen thousand, eight hundred sixty-four".