12885864 has 32 divisors (see below), whose sum is σ = 34110720. Its totient is φ = 4042496.

The previous prime is 12885841. The next prime is 12885877. The reversal of 12885864 is 46858821.

12885864 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 15384 + ... + 16199.

It is an arithmetic number, because the mean of its divisors is an integer number (1065960).

Almost surely, 2^12885864 is an apocalyptic number.

It is an amenable number.

12885864 is an abundant number, since it is smaller than the sum of its proper divisors (21224856).

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

12885864 is a wasteful number, since it uses less digits than its factorization.

12885864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31609 (or 31605 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 12885864 is about 3589.6885658787. The cubic root of 12885864 is about 234.4433118565.

The spelling of 12885864 in words is "twelve million, eight hundred eighty-five thousand, eight hundred sixty-four".