13686976 has 14 divisors (see below), whose sum is σ = 27160220. Its totient is φ = 6843456.

The previous prime is 13686971. The next prime is 13686979. The reversal of 13686976 is 67968631.

It is not an unprimeable number, because it can be changed into a prime (13686971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106866 + ... + 106993.

Almost surely, 2^13686976 is an apocalyptic number.

13686976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13686976 is a deficient number, since it is larger than the sum of its proper divisors (13473244).

13686976 is an equidigital number, since it uses as much as digits as its factorization.

13686976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213871 (or 213861 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 13686976 is about 3699.5913287821. The cubic root of 13686976 is about 239.2044025543.

The spelling of 13686976 in words is "thirteen million, six hundred eighty-six thousand, nine hundred seventy-six".