688908996 has 24 divisors (see below), whose sum is σ = 1786060640. Its totient is φ = 229636296.

The previous prime is 688908967. The next prime is 688909027. The reversal of 688908996 is 699809886.

688908996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3189286 + ... + 3189501.

Almost surely, 2^688908996 is an apocalyptic number.

It is an amenable number.

688908996 is an abundant number, since it is smaller than the sum of its proper divisors (1097151644).

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

688908996 is a wasteful number, since it uses less digits than its factorization.

688908996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378800 (or 6378792 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 63.

The square root of 688908996 is about 26247.0759514274. The cubic root of 688908996 is about 883.1896113942.

The spelling of 688908996 in words is "six hundred eighty-eight million, nine hundred eight thousand, nine hundred ninety-six".