688108 has 6 divisors (see below), whose sum is σ = 1204196. Its totient is φ = 344052.

The previous prime is 688097. The next prime is 688111. The reversal of 688108 is 801886.

It is a self number, because there is not a number n which added to its sum of digits gives 688108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86010 + ... + 86017.

2⁶⁸⁸¹⁰⁸ is an apocalyptic number.

It is an amenable number.

688108 is a deficient number, since it is larger than the sum of its proper divisors (516088).

688108 is a wasteful number, since it uses less digits than its factorization.

688108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172031 (or 172029 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 688108 is about 829.5227543594. The cubic root of 688108 is about 88.2847183147.

The spelling of 688108 in words is "six hundred eighty-eight thousand, one hundred eight".