79455870 has 64 divisors (see below), whose sum is σ = 228191040. Its totient is φ = 19557504.

The previous prime is 79455839. The next prime is 79455917. The reversal of 79455870 is 7855497.

79455870 is a `hidden beast` number, since 7 + 94 + 558 + 7 + 0 = 666.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7809 + ... + 14828.

It is an arithmetic number, because the mean of its divisors is an integer number (3565485).

Almost surely, 2^79455870 is an apocalyptic number.

79455870 is an abundant number, since it is smaller than the sum of its proper divisors (148735170).

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

79455870 is a wasteful number, since it uses less digits than its factorization.

79455870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22666 (or 22660 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 79455870 is about 8913.8022190309. The cubic root of 79455870 is about 429.9078042829.

The spelling of 79455870 in words is "seventy-nine million, four hundred fifty-five thousand, eight hundred seventy".