79621560 has 48 divisors (see below), whose sum is σ = 258771240. Its totient is φ = 21232320.

The previous prime is 79621537. The next prime is 79621573. The reversal of 79621560 is 6512697.

79621560 is a `hidden beast` number, since 7 + 96 + 2 + 1 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110226 + ... + 110945.

Almost surely, 2^79621560 is an apocalyptic number.

It is an amenable number.

79621560 is an abundant number, since it is smaller than the sum of its proper divisors (179149680).

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

79621560 is a wasteful number, since it uses less digits than its factorization.

79621560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221188 (or 221181 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 79621560 is about 8923.0913925612. The cubic root of 79621560 is about 430.2064269364.

The spelling of 79621560 in words is "seventy-nine million, six hundred twenty-one thousand, five hundred sixty".