79223580 has 36 divisors (see below), whose sum is σ = 240312072. Its totient is φ = 21126240.

The previous prime is 79223561. The next prime is 79223581. The reversal of 79223580 is 8532297.

It is a happy number.

79223580 is a `hidden beast` number, since 79 + 2 + 2 + 3 + 580 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79223581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219886 + ... + 220245.

Almost surely, 2^79223580 is an apocalyptic number.

It is an amenable number.

79223580 is an abundant number, since it is smaller than the sum of its proper divisors (161088492).

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

79223580 is a wasteful number, since it uses less digits than its factorization.

79223580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440146 (or 440141 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 79223580 is about 8900.7628886517. The cubic root of 79223580 is about 429.4884488205.

The spelling of 79223580 in words is "seventy-nine million, two hundred twenty-three thousand, five hundred eighty".