79090580 has 12 divisors (see below), whose sum is σ = 166090260. Its totient is φ = 31636224.

The previous prime is 79090577. The next prime is 79090591. The reversal of 79090580 is 8509097.

It can be written as a sum of positive squares in 2 ways, for example, as 13512976 + 65577604 = 3676^2 + 8098^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1977245 + ... + 1977284.

It is an arithmetic number, because the mean of its divisors is an integer number (13840855).

Almost surely, 2^79090580 is an apocalyptic number.

It is an amenable number.

79090580 is an abundant number, since it is smaller than the sum of its proper divisors (86999680).

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

79090580 is a wasteful number, since it uses less digits than its factorization.

79090580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954538 (or 3954536 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 79090580 is about 8893.2884806465. The cubic root of 79090580 is about 429.2479734517.

The spelling of 79090580 in words is "seventy-nine million, ninety thousand, five hundred eighty".