79872318 has 40 divisors (see below), whose sum is σ = 181267680. Its totient is φ = 26287092.

The previous prime is 79872281. The next prime is 79872323. The reversal of 79872318 is 81327897.

Its product of digits (169344) is a multiple of the sum of its prime divisors (84).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1011003 + ... + 1011081.

It is an arithmetic number, because the mean of its divisors is an integer number (4531692).

Almost surely, 2^79872318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79872318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90633840).

79872318 is an abundant number, since it is smaller than the sum of its proper divisors (101395362).

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

79872318 is an frugal number, since it uses more digits than its factorization.

79872318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 84 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 79872318 is about 8937.1314189733. The cubic root of 79872318 is about 430.6575805012.

The spelling of 79872318 in words is "seventy-nine million, eight hundred seventy-two thousand, three hundred eighteen".