688875 has 32 divisors (see below), whose sum is σ = 1257984. Its totient is φ = 332000.

The previous prime is 688871. The next prime is 688889. The reversal of 688875 is 578886.

It is a happy number.

688875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 688875 - 2² = 688871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4042 + ... + 4208.

It is an arithmetic number, because the mean of its divisors is an integer number (39312).

2⁶⁸⁸⁸⁷⁵ is an apocalyptic number.

688875 is a deficient number, since it is larger than the sum of its proper divisors (569109).

688875 is a wasteful number, since it uses less digits than its factorization.

688875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 186 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 688875 is about 829.9849396224. The cubic root of 688875 is about 88.3175083395.

The spelling of 688875 in words is "six hundred eighty-eight thousand, eight hundred seventy-five".