13016979 has 12 divisors (see below), whose sum is σ = 19202976. Its totient is φ = 8493072.

The previous prime is 13016963. The next prime is 13016987. The reversal of 13016979 is 97961031.

It is not a de Polignac number, because 13016979 - 2⁴ = 13016963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13016929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14964 + ... + 15809.

It is an arithmetic number, because the mean of its divisors is an integer number (1600248).

Almost surely, 2^13016979 is an apocalyptic number.

13016979 is a deficient number, since it is larger than the sum of its proper divisors (6185997).

13016979 is a wasteful number, since it uses less digits than its factorization.

13016979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30826 (or 30823 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 13016979 is about 3607.9050708133. The cubic root of 13016979 is about 235.2357917036.

The spelling of 13016979 in words is "thirteen million, sixteen thousand, nine hundred seventy-nine".