79318579 has 2 divisors, whose sum is σ = 79318580. Its totient is φ = 79318578.

The previous prime is 79318529. The next prime is 79318601. The reversal of 79318579 is 97581397.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79318579 - 2²¹ = 77221427 is a prime.

It is not a weakly prime, because it can be changed into another prime (79318529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39659289 + 39659290.

It is an arithmetic number, because the mean of its divisors is an integer number (39659290).

Almost surely, 2^79318579 is an apocalyptic number.

79318579 is a deficient number, since it is larger than the sum of its proper divisors (1).

79318579 is an equidigital number, since it uses as much as digits as its factorization.

79318579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 476280, while the sum is 49.

The square root of 79318579 is about 8906.0978548408. The cubic root of 79318579 is about 429.6600504047.

It can be divided in two parts, 79318 and 579, that added together give a palindrome (79897).

The spelling of 79318579 in words is "seventy-nine million, three hundred eighteen thousand, five hundred seventy-nine".