79345872 has 80 divisors (see below), whose sum is σ = 231562560. Its totient is φ = 26006400.

The previous prime is 79345859. The next prime is 79345891. The reversal of 79345872 is 27854397.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24847 + ... + 27857.

It is an arithmetic number, because the mean of its divisors is an integer number (2894532).

Almost surely, 2^79345872 is an apocalyptic number.

79345872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79345872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115781280).

79345872 is an abundant number, since it is smaller than the sum of its proper divisors (152216688).

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

79345872 is a wasteful number, since it uses less digits than its factorization.

79345872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089 (or 3077 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 79345872 is about 8907.6299878250. The cubic root of 79345872 is about 429.7093258167.

It can be divided in two parts, 793 and 45872, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 79345872 in words is "seventy-nine million, three hundred forty-five thousand, eight hundred seventy-two".