79913369 has 2 divisors, whose sum is σ = 79913370. Its totient is φ = 79913368.

The previous prime is 79913363. The next prime is 79913401. The reversal of 79913369 is 96331997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64192144 + 15721225 = 8012^2 + 3965^2 .

It is a cyclic number.

It is not a de Polignac number, because 79913369 - 2²⁴ = 63136153 is a prime.

It is a super-2 number, since 2×79913369² = 12772293089860322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79913363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39956684 + 39956685.

It is an arithmetic number, because the mean of its divisors is an integer number (39956685).

Almost surely, 2^79913369 is an apocalyptic number.

It is an amenable number.

79913369 is a deficient number, since it is larger than the sum of its proper divisors (1).

79913369 is an equidigital number, since it uses as much as digits as its factorization.

79913369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 275562, while the sum is 47.

The square root of 79913369 is about 8939.4277781075. The cubic root of 79913369 is about 430.7313478043.

The spelling of 79913369 in words is "seventy-nine million, nine hundred thirteen thousand, three hundred sixty-nine".