680742088 has 32 divisors (see below), whose sum is σ = 1377855360. Its totient is φ = 313439040.

The previous prime is 680742079. The next prime is 680742133. The reversal of 680742088 is 880247086.

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, 37231 + ... + 52417.

It is an arithmetic number, because the mean of its divisors is an integer number (43057980).

Almost surely, 2^680742088 is an apocalyptic number.

It is an amenable number.

680742088 is an abundant number, since it is smaller than the sum of its proper divisors (697113272).

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

680742088 is a wasteful number, since it uses less digits than its factorization.

680742088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15637 (or 15633 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 680742088 is about 26091.0346287762. The cubic root of 680742088 is about 879.6857038767.

The spelling of 680742088 in words is "six hundred eighty million, seven hundred forty-two thousand, eighty-eight".