79311232 has 128 divisors (see below), whose sum is σ = 212486400. Its totient is φ = 28477440.

The previous prime is 79311217. The next prime is 79311247. The reversal of 79311232 is 23211397.

It is an interprime number because it is at equal distance from previous prime (79311217) and next prime (79311247).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 79311232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127819 + ... + 128437.

It is an arithmetic number, because the mean of its divisors is an integer number (1660050).

Almost surely, 2^79311232 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 79311232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106243200).

79311232 is an abundant number, since it is smaller than the sum of its proper divisors (133175168).

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

79311232 is a wasteful number, since it uses less digits than its factorization.

79311232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 652 counting only the distinct ones).

The product of its digits is 2268, while the sum is 28.

The square root of 79311232 is about 8905.6853750848. The cubic root of 79311232 is about 429.6467840305.

The spelling of 79311232 in words is "seventy-nine million, three hundred eleven thousand, two hundred thirty-two".