79818372 has 60 divisors (see below), whose sum is σ = 217753536. Its totient is φ = 25446960.

The previous prime is 79818359. The next prime is 79818379. The reversal of 79818372 is 27381897.

It is not an unprimeable number, because it can be changed into a prime (79818379) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2097 + ... + 12807.

Almost surely, 2^79818372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79818372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108876768).

79818372 is an abundant number, since it is smaller than the sum of its proper divisors (137935164).

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

79818372 is a wasteful number, since it uses less digits than its factorization.

79818372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10750 (or 10739 counting only the distinct ones).

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

The square root of 79818372 is about 8934.1128266885. The cubic root of 79818372 is about 430.5606028634.

The spelling of 79818372 in words is "seventy-nine million, eight hundred eighteen thousand, three hundred seventy-two".