12892688 has 20 divisors (see below), whose sum is σ = 25078380. Its totient is φ = 6420864.

The previous prime is 12892679. The next prime is 12892703. The reversal of 12892688 is 88629821.

It can be written as a sum of positive squares in 2 ways, for example, as 6801664 + 6091024 = 2608^2 + 2468^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2978 + ... + 5886.

It is an arithmetic number, because the mean of its divisors is an integer number (1253919).

Almost surely, 2^12892688 is an apocalyptic number.

It is an amenable number.

12892688 is a deficient number, since it is larger than the sum of its proper divisors (12185692).

12892688 is a wasteful number, since it uses less digits than its factorization.

12892688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194 (or 3188 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 12892688 is about 3590.6389403559. The cubic root of 12892688 is about 234.4846894683.

The spelling of 12892688 in words is "twelve million, eight hundred ninety-two thousand, six hundred eighty-eight".