13000979 has 2 divisors, whose sum is σ = 13000980. Its totient is φ = 13000978.

The previous prime is 13000973. The next prime is 13000987. The reversal of 13000979 is 97900031.

It is a weak prime.

It is an emirp because it is prime and its reverse (97900031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13000979 - 2⁴ = 13000963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13000973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500489 + 6500490.

It is an arithmetic number, because the mean of its divisors is an integer number (6500490).

Almost surely, 2^13000979 is an apocalyptic number.

13000979 is a deficient number, since it is larger than the sum of its proper divisors (1).

13000979 is an equidigital number, since it uses as much as digits as its factorization.

13000979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 13000979 is about 3605.6870357811. The cubic root of 13000979 is about 235.1393710769.

The spelling of 13000979 in words is "thirteen million, nine hundred seventy-nine", and thus it is an aban number.