13656928 has 12 divisors (see below), whose sum is σ = 26887140. Its totient is φ = 6828448.

The previous prime is 13656911. The next prime is 13656989. The reversal of 13656928 is 82965631.

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, 213358 + ... + 213421.

It is an arithmetic number, because the mean of its divisors is an integer number (2240595).

Almost surely, 2^13656928 is an apocalyptic number.

It is an amenable number.

13656928 is a deficient number, since it is larger than the sum of its proper divisors (13230212).

13656928 is an equidigital number, since it uses as much as digits as its factorization.

13656928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426789 (or 426781 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 13656928 is about 3695.5281084035. The cubic root of 13656928 is about 239.0292267731.

The spelling of 13656928 in words is "thirteen million, six hundred fifty-six thousand, nine hundred twenty-eight".