13069979 has 16 divisors (see below), whose sum is σ = 14606592. Its totient is φ = 11618208.

The previous prime is 13069963. The next prime is 13069999. The reversal of 13069979 is 97996031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13069979 - 2⁴ = 13069963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13069909) 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, 57464 + ... + 57690.

It is an arithmetic number, because the mean of its divisors is an integer number (912912).

Almost surely, 2^13069979 is an apocalyptic number.

13069979 is a deficient number, since it is larger than the sum of its proper divisors (1536613).

13069979 is a wasteful number, since it uses less digits than its factorization.

13069979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 13069979 is about 3615.2425921368. The cubic root of 13069979 is about 235.5546218055.

The spelling of 13069979 in words is "thirteen million, sixty-nine thousand, nine hundred seventy-nine".