688933098 has 48 divisors (see below), whose sum is σ = 1708724160. Its totient is φ = 196515648.

The previous prime is 688933079. The next prime is 688933111. The reversal of 688933098 is 890339886.

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 23 ways as a sum of consecutive naturals, for example, 78886 + ... + 87182.

It is an arithmetic number, because the mean of its divisors is an integer number (35598420).

Almost surely, 2^688933098 is an apocalyptic number.

688933098 is an abundant number, since it is smaller than the sum of its proper divisors (1019791062).

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

688933098 is a wasteful number, since it uses less digits than its factorization.

688933098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8971 (or 8968 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 688933098 is about 26247.5350842703. The cubic root of 688933098 is about 883.1999109587.

The spelling of 688933098 in words is "six hundred eighty-eight million, nine hundred thirty-three thousand, ninety-eight".