680884256 has 24 divisors (see below), whose sum is σ = 1443606444. Its totient is φ = 314254080.

The previous prime is 680884223. The next prime is 680884261. The reversal of 680884256 is 652488086.

It can be written as a sum of positive squares in 2 ways, for example, as 660490000 + 20394256 = 25700^2 + 4516^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 680884256.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817955 + ... + 818786.

Almost surely, 2^680884256 is an apocalyptic number.

It is an amenable number.

680884256 is an abundant number, since it is smaller than the sum of its proper divisors (762722188).

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

680884256 is a wasteful number, since it uses less digits than its factorization.

680884256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636764 (or 1636756 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The square root of 680884256 is about 26093.7589473039. The cubic root of 680884256 is about 879.7469382533.

The spelling of 680884256 in words is "six hundred eighty million, eight hundred eighty-four thousand, two hundred fifty-six".