688067088 has 40 divisors (see below), whose sum is σ = 1778808768. Its totient is φ = 229187712.

The previous prime is 688067071. The next prime is 688067117. The reversal of 688067088 is 880760886.

It is a self number, because there is not a number n which added to its sum of digits gives 688067088.

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, 72981 + ... + 81867.

Almost surely, 2^688067088 is an apocalyptic number.

It is an amenable number.

688067088 is an abundant number, since it is smaller than the sum of its proper divisors (1090741680).

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

688067088 is a wasteful number, since it uses less digits than its factorization.

688067088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10511 (or 10505 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The square root of 688067088 is about 26231.0329190446. The cubic root of 688067088 is about 882.8296860098.

The spelling of 688067088 in words is "six hundred eighty-eight million, sixty-seven thousand, eighty-eight".