79855764 has 12 divisors (see below), whose sum is σ = 186330144. Its totient is φ = 26618584.

The previous prime is 79855739. The next prime is 79855829. The reversal of 79855764 is 46755897.

It is a tau number, because it is divible by the number of its divisors (12).

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, 3327312 + ... + 3327335.

It is an arithmetic number, because the mean of its divisors is an integer number (15527512).

Almost surely, 2^79855764 is an apocalyptic number.

It is an amenable number.

79855764 is an abundant number, since it is smaller than the sum of its proper divisors (106474380).

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

79855764 is a wasteful number, since it uses less digits than its factorization.

79855764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6654654 (or 6654652 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 79855764 is about 8936.2052348858. The cubic root of 79855764 is about 430.6278263539.

The spelling of 79855764 in words is "seventy-nine million, eight hundred fifty-five thousand, seven hundred sixty-four".