12862564 has 48 divisors (see below), whose sum is σ = 26812800. Its totient is φ = 5322240.

The previous prime is 12862511. The next prime is 12862567. The reversal of 12862564 is 46526821.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12862567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64537 + ... + 64735.

It is an arithmetic number, because the mean of its divisors is an integer number (558600).

Almost surely, 2^12862564 is an apocalyptic number.

It is an amenable number.

12862564 is an abundant number, since it is smaller than the sum of its proper divisors (13950236).

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

12862564 is a wasteful number, since it uses less digits than its factorization.

12862564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 338 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 12862564 is about 3586.4416905897. The cubic root of 12862564 is about 234.3019211332.

The spelling of 12862564 in words is "twelve million, eight hundred sixty-two thousand, five hundred sixty-four".