79970085 has 96 divisors (see below), whose sum is σ = 159239808. Its totient is φ = 38257920.

The previous prime is 79970063. The next prime is 79970119. The reversal of 79970085 is 58007997.

It is not a de Polignac number, because 79970085 - 2⁸ = 79969829 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79970085.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 963454 + ... + 963536.

It is an arithmetic number, because the mean of its divisors is an integer number (1658748).

Almost surely, 2^79970085 is an apocalyptic number.

It is an amenable number.

79970085 is a deficient number, since it is larger than the sum of its proper divisors (79269723).

79970085 is a wasteful number, since it uses less digits than its factorization.

79970085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 79970085 is about 8942.5994542974. The cubic root of 79970085 is about 430.8332230490.

The spelling of 79970085 in words is "seventy-nine million, nine hundred seventy thousand, eighty-five".