687444696 has 48 divisors (see below), whose sum is σ = 1863936360. Its totient is φ = 228888960.

The previous prime is 687444689. The next prime is 687444731. The reversal of 687444696 is 696444786.

687444696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64996 + ... + 74828.

Almost surely, 2^687444696 is an apocalyptic number.

It is an amenable number.

687444696 is an abundant number, since it is smaller than the sum of its proper divisors (1176491664).

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

687444696 is a wasteful number, since it uses less digits than its factorization.

687444696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10816 (or 10809 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The square root of 687444696 is about 26219.1665771435. The cubic root of 687444696 is about 882.5634174534.

The spelling of 687444696 in words is "six hundred eighty-seven million, four hundred forty-four thousand, six hundred ninety-six".