13564634 has 16 divisors (see below), whose sum is σ = 21150720. Its totient is φ = 6516720.

The previous prime is 13564609. The next prime is 13564669. The reversal of 13564634 is 43646531.

It is a self number, because there is not a number n which added to its sum of digits gives 13564634.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15287 + ... + 16149.

It is an arithmetic number, because the mean of its divisors is an integer number (1321920).

Almost surely, 2^13564634 is an apocalyptic number.

13564634 is a deficient number, since it is larger than the sum of its proper divisors (7586086).

13564634 is a wasteful number, since it uses less digits than its factorization.

13564634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165.

The product of its digits is 25920, while the sum is 32.

The square root of 13564634 is about 3683.0196849868. The cubic root of 13564634 is about 238.4895532550.

The spelling of 13564634 in words is "thirteen million, five hundred sixty-four thousand, six hundred thirty-four".