680886608 has 10 divisors (see below), whose sum is σ = 1319217834. Its totient is φ = 340443296.

The previous prime is 680886607. The next prime is 680886611. The reversal of 680886608 is 806688086.

It can be written as a sum of positive squares in only one way, i.e., 347897104 + 332989504 = 18652^2 + 18248^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680886607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21277691 + ... + 21277722.

Almost surely, 2^680886608 is an apocalyptic number.

It is an amenable number.

680886608 is a deficient number, since it is larger than the sum of its proper divisors (638331226).

680886608 is a wasteful number, since it uses less digits than its factorization.

680886608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42555421 (or 42555415 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 50.

The square root of 680886608 is about 26093.8040155130. The cubic root of 680886608 is about 879.7479512313.

The spelling of 680886608 in words is "six hundred eighty million, eight hundred eighty-six thousand, six hundred eight".