12699916 has 6 divisors (see below), whose sum is σ = 22224860. Its totient is φ = 6349956.

The previous prime is 12699899. The next prime is 12699931. The reversal of 12699916 is 61999621.

It is a super-2 number, since 2×12699916² = 322575732814112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1587486 + ... + 1587493.

Almost surely, 2^12699916 is an apocalyptic number.

It is an amenable number.

12699916 is a deficient number, since it is larger than the sum of its proper divisors (9524944).

12699916 is a wasteful number, since it uses less digits than its factorization.

12699916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174983 (or 3174981 counting only the distinct ones).

The product of its digits is 52488, while the sum is 43.

The square root of 12699916 is about 3563.6941507374. The cubic root of 12699916 is about 233.3101410055.

The spelling of 12699916 in words is "twelve million, six hundred ninety-nine thousand, nine hundred sixteen".