13656804 has 48 divisors (see below), whose sum is σ = 36599808. Its totient is φ = 3882528.

The previous prime is 13656791. The next prime is 13656821. The reversal of 13656804 is 40865631.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30607 + ... + 31049.

It is an arithmetic number, because the mean of its divisors is an integer number (762496).

Almost surely, 2^13656804 is an apocalyptic number.

13656804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13656804 is an abundant number, since it is smaller than the sum of its proper divisors (22943004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13656804 is a wasteful number, since it uses less digits than its factorization.

13656804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 13656804 is about 3695.5113313316. The cubic root of 13656804 is about 239.0285033377.

The spelling of 13656804 in words is "thirteen million, six hundred fifty-six thousand, eight hundred four".