12317979 has 16 divisors (see below), whose sum is σ = 17517600. Its totient is φ = 7672320.

The previous prime is 12317971. The next prime is 12317983. The reversal of 12317979 is 97971321.

It is not a de Polignac number, because 12317979 - 2³ = 12317971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12317971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6789 + ... + 8409.

It is an arithmetic number, because the mean of its divisors is an integer number (1094850).

Almost surely, 2^12317979 is an apocalyptic number.

12317979 is a deficient number, since it is larger than the sum of its proper divisors (5199621).

12317979 is a wasteful number, since it uses less digits than its factorization.

12317979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790.

The product of its digits is 23814, while the sum is 39.

The square root of 12317979 is about 3509.6978502430. The cubic root of 12317979 is about 230.9474403011.

The spelling of 12317979 in words is "twelve million, three hundred seventeen thousand, nine hundred seventy-nine".