12916688 has 20 divisors (see below), whose sum is σ = 25277028. Its totient is φ = 6393600.

The previous prime is 12916679. The next prime is 12916721. The reversal of 12916688 is 88661921.

It can be written as a sum of positive squares in 2 ways, for example, as 7118224 + 5798464 = 2668^2 + 2408^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381 + ... + 5612.

Almost surely, 2^12916688 is an apocalyptic number.

It is an amenable number.

12916688 is a deficient number, since it is larger than the sum of its proper divisors (12360340).

12916688 is a wasteful number, since it uses less digits than its factorization.

12916688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8102 (or 8096 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 12916688 is about 3593.9794100690. The cubic root of 12916688 is about 234.6300986121.

The spelling of 12916688 in words is "twelve million, nine hundred sixteen thousand, six hundred eighty-eight".