79927380 has 72 divisors (see below), whose sum is σ = 261103752. Its totient is φ = 19673856.

The previous prime is 79927361. The next prime is 79927391. The reversal of 79927380 is 8372997.

It can be written as a sum of positive squares in 4 ways, for example, as 5588496 + 74338884 = 2364^2 + 8622^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 14739 + ... + 19418.

It is an arithmetic number, because the mean of its divisors is an integer number (3626441).

Almost surely, 2^79927380 is an apocalyptic number.

It is an amenable number.

79927380 is an abundant number, since it is smaller than the sum of its proper divisors (181176372).

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

79927380 is a wasteful number, since it uses less digits than its factorization.

79927380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34185 (or 34180 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 79927380 is about 8940.2114068964. The cubic root of 79927380 is about 430.7565193299.

The spelling of 79927380 in words is "seventy-nine million, nine hundred twenty-seven thousand, three hundred eighty".