12885866 has 8 divisors (see below), whose sum is σ = 22090080. Its totient is φ = 5522508.

The previous prime is 12885841. The next prime is 12885877. The reversal of 12885866 is 66858821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460196 + ... + 460223.

It is an arithmetic number, because the mean of its divisors is an integer number (2761260).

Almost surely, 2^12885866 is an apocalyptic number.

12885866 is a deficient number, since it is larger than the sum of its proper divisors (9204214).

12885866 is an equidigital number, since it uses as much as digits as its factorization.

12885866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920428.

The product of its digits is 184320, while the sum is 44.

The square root of 12885866 is about 3589.6888444543. The cubic root of 12885866 is about 234.4433239857.

The spelling of 12885866 in words is "twelve million, eight hundred eighty-five thousand, eight hundred sixty-six".