12920968 has 8 divisors (see below), whose sum is σ = 24226830. Its totient is φ = 6460480.

The previous prime is 12920951. The next prime is 12920977. The reversal of 12920968 is 86902921.

It can be written as a sum of positive squares in only one way, i.e., 12376324 + 544644 = 3518^2 + 738^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 807553 + ... + 807568.

Almost surely, 2^12920968 is an apocalyptic number.

It is an amenable number.

12920968 is a deficient number, since it is larger than the sum of its proper divisors (11305862).

12920968 is a wasteful number, since it uses less digits than its factorization.

12920968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615127 (or 1615123 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 12920968 is about 3594.5748010022. The cubic root of 12920968 is about 234.6560109802.

The spelling of 12920968 in words is "twelve million, nine hundred twenty thousand, nine hundred sixty-eight".