708791979 has 16 divisors (see below), whose sum is σ = 1136910080. Its totient is φ = 383706720.

The previous prime is 708791977. The next prime is 708791981. The reversal of 708791979 is 979197807.

It is an interprime number because it is at equal distance from previous prime (708791977) and next prime (708791981).

It is not a de Polignac number, because 708791979 - 2¹ = 708791977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (708791977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887812 + ... + 888609.

It is an arithmetic number, because the mean of its divisors is an integer number (71056880).

Almost surely, 2^708791979 is an apocalyptic number.

708791979 is a deficient number, since it is larger than the sum of its proper divisors (428118101).

708791979 is a wasteful number, since it uses less digits than its factorization.

708791979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776450.

The product of its (nonzero) digits is 2000376, while the sum is 57.

The square root of 708791979 is about 26623.1474285066. The cubic root of 708791979 is about 891.6058953817.

The spelling of 708791979 in words is "seven hundred eight million, seven hundred ninety-one thousand, nine hundred seventy-nine".