12879392 has 24 divisors (see below), whose sum is σ = 25465356. Its totient is φ = 6412032.

The previous prime is 12879389. The next prime is 12879407. The reversal of 12879392 is 29397821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12645136 + 234256 = 3556^2 + 484^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8138 + ... + 9590.

Almost surely, 2^12879392 is an apocalyptic number.

It is an amenable number.

12879392 is a deficient number, since it is larger than the sum of its proper divisors (12585964).

12879392 is a wasteful number, since it uses less digits than its factorization.

12879392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740 (or 1732 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 12879392 is about 3588.7869816973. The cubic root of 12879392 is about 234.4040551120.

The spelling of 12879392 in words is "twelve million, eight hundred seventy-nine thousand, three hundred ninety-two".