12564906 has 16 divisors (see below), whose sum is σ = 25474944. Its totient is φ = 4130784.

The previous prime is 12564899. The next prime is 12564911. The reversal of 12564906 is 60946521.

It is a Curzon number.

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, 13906 + ... + 14781.

It is an arithmetic number, because the mean of its divisors is an integer number (1592184).

Almost surely, 2^12564906 is an apocalyptic number.

12564906 is an abundant number, since it is smaller than the sum of its proper divisors (12910038).

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

12564906 is a wasteful number, since it uses less digits than its factorization.

12564906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28765.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 12564906 is about 3544.7011157501. The cubic root of 12564906 is about 232.4804377112.

The spelling of 12564906 in words is "twelve million, five hundred sixty-four thousand, nine hundred six".