79865472 has 64 divisors (see below), whose sum is σ = 213269760. Its totient is φ = 26480640.

The previous prime is 79865441. The next prime is 79865477. The reversal of 79865472 is 27456897.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79865477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92113 + ... + 92975.

It is an arithmetic number, because the mean of its divisors is an integer number (3332340).

Almost surely, 2^79865472 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 79865472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106634880).

79865472 is an abundant number, since it is smaller than the sum of its proper divisors (133404288).

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

79865472 is a wasteful number, since it uses less digits than its factorization.

79865472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121 (or 1109 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 79865472 is about 8936.7484019637. The cubic root of 79865472 is about 430.6452760045.

The spelling of 79865472 in words is "seventy-nine million, eight hundred sixty-five thousand, four hundred seventy-two".