79518799 has 2 divisors, whose sum is σ = 79518800. Its totient is φ = 79518798.

The previous prime is 79518787. The next prime is 79518847. The reversal of 79518799 is 99781597.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79518799 - 2⁷ = 79518671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79518779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39759399 + 39759400.

It is an arithmetic number, because the mean of its divisors is an integer number (39759400).

Almost surely, 2^79518799 is an apocalyptic number.

79518799 is a deficient number, since it is larger than the sum of its proper divisors (1).

79518799 is an equidigital number, since it uses as much as digits as its factorization.

79518799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 55.

The square root of 79518799 is about 8917.3313833232. The cubic root of 79518799 is about 430.0212699051.

The spelling of 79518799 in words is "seventy-nine million, five hundred eighteen thousand, seven hundred ninety-nine".