79879392 has 96 divisors (see below), whose sum is σ = 237081600. Its totient is φ = 26158464.

The previous prime is 79879351. The next prime is 79879399. The reversal of 79879392 is 29397897.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79879399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50193 + ... + 51759.

It is an arithmetic number, because the mean of its divisors is an integer number (2469600).

Almost surely, 2^79879392 is an apocalyptic number.

79879392 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 79879392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118540800).

79879392 is an abundant number, since it is smaller than the sum of its proper divisors (157202208).

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

79879392 is a wasteful number, since it uses less digits than its factorization.

79879392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645 (or 1631 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 79879392 is about 8937.5271747839. The cubic root of 79879392 is about 430.6702940498.

The spelling of 79879392 in words is "seventy-nine million, eight hundred seventy-nine thousand, three hundred ninety-two".