12920974 has 16 divisors (see below), whose sum is σ = 21239856. Its totient is φ = 5846400.

The previous prime is 12920951. The next prime is 12920977. The reversal of 12920974 is 47902921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12920977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4084 + ... + 6520.

It is an arithmetic number, because the mean of its divisors is an integer number (1327491).

Almost surely, 2^12920974 is an apocalyptic number.

12920974 is a deficient number, since it is larger than the sum of its proper divisors (8318882).

12920974 is a wasteful number, since it uses less digits than its factorization.

12920974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 12920974 is about 3594.5756355932. The cubic root of 12920974 is about 234.6560473020.

The spelling of 12920974 in words is "twelve million, nine hundred twenty thousand, nine hundred seventy-four".