12564328 has 16 divisors (see below), whose sum is σ = 26923680. Its totient is φ = 5384688.

The previous prime is 12564319. The next prime is 12564347. The reversal of 12564328 is 82346521.

It is a self number, because there is not a number n which added to its sum of digits gives 12564328.

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, 112126 + ... + 112237.

It is an arithmetic number, because the mean of its divisors is an integer number (1682730).

Almost surely, 2^12564328 is an apocalyptic number.

It is an amenable number.

12564328 is an abundant number, since it is smaller than the sum of its proper divisors (14359352).

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

12564328 is a wasteful number, since it uses less digits than its factorization.

12564328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224376 (or 224372 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 12564328 is about 3544.6195846663. The cubic root of 12564328 is about 232.4768728682.

The spelling of 12564328 in words is "twelve million, five hundred sixty-four thousand, three hundred twenty-eight".