688007968 has 24 divisors (see below), whose sum is σ = 1377477360. Its totient is φ = 338172480.

The previous prime is 688007953. The next prime is 688008001. The reversal of 688007968 is 869700886.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180318 + ... + 184093.

It is an arithmetic number, because the mean of its divisors is an integer number (57394890).

Almost surely, 2^688007968 is an apocalyptic number.

It is an amenable number.

688007968 is an abundant number, since it is smaller than the sum of its proper divisors (689469392).

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

688007968 is a wasteful number, since it uses less digits than its factorization.

688007968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364480 (or 364472 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 688007968 is about 26229.9059853443. The cubic root of 688007968 is about 882.8044004977.

The spelling of 688007968 in words is "six hundred eighty-eight million, seven thousand, nine hundred sixty-eight".