79651520 has 112 divisors (see below), whose sum is σ = 209690208. Its totient is φ = 28631040.

The previous prime is 79651519. The next prime is 79651547. The reversal of 79651520 is 2515697.

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, 170327 + ... + 170793.

It is an arithmetic number, because the mean of its divisors is an integer number (1872234).

Almost surely, 2^79651520 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 79651520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104845104).

79651520 is an abundant number, since it is smaller than the sum of its proper divisors (130038688).

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

79651520 is a wasteful number, since it uses less digits than its factorization.

79651520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 79651520 is about 8924.7700250483. The cubic root of 79651520 is about 430.2603795269.

The spelling of 79651520 in words is "seventy-nine million, six hundred fifty-one thousand, five hundred twenty".