680972884 has 6 divisors (see below), whose sum is σ = 1191702554. Its totient is φ = 340486440.

The previous prime is 680972869. The next prime is 680972911. The reversal of 680972884 is 488279086.

It can be written as a sum of positive squares in only one way, i.e., 628003600 + 52969284 = 25060^2 + 7278^2 .

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 as a sum of consecutive naturals, namely, 85121607 + ... + 85121614.

Almost surely, 2^680972884 is an apocalyptic number.

It is an amenable number.

680972884 is a deficient number, since it is larger than the sum of its proper divisors (510729670).

680972884 is a wasteful number, since it uses less digits than its factorization.

680972884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170243225 (or 170243223 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The square root of 680972884 is about 26095.4571525390. The cubic root of 680972884 is about 879.7851076524.

The spelling of 680972884 in words is "six hundred eighty million, nine hundred seventy-two thousand, eight hundred eighty-four".