108688 has 10 divisors (see below), whose sum is σ = 210614. Its totient is φ = 54336.

The previous prime is 108677. The next prime is 108707. The reversal of 108688 is 886801.

It can be written as a sum of positive squares in only one way, i.e., 71824 + 36864 = 268^2 + 192^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3381 + ... + 3412.

2¹⁰⁸⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

108688 is a deficient number, since it is larger than the sum of its proper divisors (101926).

108688 is an equidigital number, since it uses as much as digits as its factorization.

108688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6801 (or 6795 counting only the distinct ones).

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

The square root of 108688 is about 329.6786313973. The cubic root of 108688 is about 47.7229409110.

The spelling of 108688 in words is "one hundred eight thousand, six hundred eighty-eight".