679987792 has 40 divisors (see below), whose sum is σ = 1454594400. Its totient is φ = 305354880.

The previous prime is 679987787. The next prime is 679987817. The reversal of 679987792 is 297789976.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8667 + ... + 37882.

It is an arithmetic number, because the mean of its divisors is an integer number (36364860).

Almost surely, 2^679987792 is an apocalyptic number.

It is an amenable number.

679987792 is an abundant number, since it is smaller than the sum of its proper divisors (774606608).

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

679987792 is a wasteful number, since it uses less digits than its factorization.

679987792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46651 (or 46645 counting only the distinct ones).

The product of its digits is 24004512, while the sum is 64.

The square root of 679987792 is about 26076.5755420454. The cubic root of 679987792 is about 879.3606719985.

The spelling of 679987792 in words is "six hundred seventy-nine million, nine hundred eighty-seven thousand, seven hundred ninety-two".