79198079 has 2 divisors, whose sum is σ = 79198080. Its totient is φ = 79198078.

The previous prime is 79198073. The next prime is 79198081. The reversal of 79198079 is 97089197.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79198079 - 2²⁰ = 78149503 is a prime.

It is a Sophie Germain prime.

Together with 79198081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79198073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39599039 + 39599040.

It is an arithmetic number, because the mean of its divisors is an integer number (39599040).

Almost surely, 2^79198079 is an apocalyptic number.

79198079 is a deficient number, since it is larger than the sum of its proper divisors (1).

79198079 is an equidigital number, since it uses as much as digits as its factorization.

79198079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 50.

The square root of 79198079 is about 8899.3302556990. The cubic root of 79198079 is about 429.4423616989.

The spelling of 79198079 in words is "seventy-nine million, one hundred ninety-eight thousand, seventy-nine".