13656628 has 12 divisors (see below), whose sum is σ = 24455200. Its totient is φ = 6669432.

The previous prime is 13656613. The next prime is 13656653. The reversal of 13656628 is 82665631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39528 + ... + 39871.

Almost surely, 2^13656628 is an apocalyptic number.

It is an amenable number.

13656628 is a deficient number, since it is larger than the sum of its proper divisors (10798572).

13656628 is a wasteful number, since it uses less digits than its factorization.

13656628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79446 (or 79444 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 13656628 is about 3695.4875185826. The cubic root of 13656628 is about 239.0274765187.

The spelling of 13656628 in words is "thirteen million, six hundred fifty-six thousand, six hundred twenty-eight".