13023979 has 2 divisors, whose sum is σ = 13023980. Its totient is φ = 13023978.

The previous prime is 13023973. The next prime is 13023991. The reversal of 13023979 is 97932031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13023979 - 2³ = 13023971 is a prime.

It is not a weakly prime, because it can be changed into another prime (13023971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6511989 + 6511990.

It is an arithmetic number, because the mean of its divisors is an integer number (6511990).

Almost surely, 2^13023979 is an apocalyptic number.

13023979 is a deficient number, since it is larger than the sum of its proper divisors (1).

13023979 is an equidigital number, since it uses as much as digits as its factorization.

13023979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 13023979 is about 3608.8750324720. The cubic root of 13023979 is about 235.2779508831.

The spelling of 13023979 in words is "thirteen million, twenty-three thousand, nine hundred seventy-nine".