79529680 has 40 divisors (see below), whose sum is σ = 188405352. Its totient is φ = 31209984.

The previous prime is 79529651. The next prime is 79529683. The reversal of 79529680 is 8692597.

It can be written as a sum of positive squares in 4 ways, for example, as 17372224 + 62157456 = 4168^2 + 7884^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 79529680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79529683) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5139 + ... + 13618.

Almost surely, 2^79529680 is an apocalyptic number.

It is an amenable number.

79529680 is an abundant number, since it is smaller than the sum of its proper divisors (108875672).

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

79529680 is a wasteful number, since it uses less digits than its factorization.

79529680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18823 (or 18817 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 79529680 is about 8917.9414665045. The cubic root of 79529680 is about 430.0408830788.

The spelling of 79529680 in words is "seventy-nine million, five hundred twenty-nine thousand, six hundred eighty".