79789518 has 12 divisors (see below), whose sum is σ = 172877328. Its totient is φ = 26596500.

The previous prime is 79789513. The next prime is 79789547. The reversal of 79789518 is 81598797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79789513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2216358 + ... + 2216393.

It is an arithmetic number, because the mean of its divisors is an integer number (14406444).

Almost surely, 2^79789518 is an apocalyptic number.

79789518 is an abundant number, since it is smaller than the sum of its proper divisors (93087810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79789518 is a wasteful number, since it uses less digits than its factorization.

79789518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4432759 (or 4432756 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 54.

The square root of 79789518 is about 8932.4978589418. The cubic root of 79789518 is about 430.5087146718.

The spelling of 79789518 in words is "seventy-nine million, seven hundred eighty-nine thousand, five hundred eighteen".