79928080 has 20 divisors (see below), whose sum is σ = 185832972. Its totient is φ = 31971200.

The previous prime is 79928071. The next prime is 79928083. The reversal of 79928080 is 8082997.

It can be written as a sum of positive squares in 2 ways, for example, as 25522704 + 54405376 = 5052^2 + 7376^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (79928083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499471 + ... + 499630.

Almost surely, 2^79928080 is an apocalyptic number.

It is an amenable number.

79928080 is an abundant number, since it is smaller than the sum of its proper divisors (105904892).

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

79928080 is a wasteful number, since it uses less digits than its factorization.

79928080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999114 (or 999108 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 79928080 is about 8940.2505557730. The cubic root of 79928080 is about 430.7577768409.

The spelling of 79928080 in words is "seventy-nine million, nine hundred twenty-eight thousand, eighty".