687125 has 16 divisors (see below), whose sum is σ = 898560. Its totient is φ = 523600.

The previous prime is 687121. The next prime is 687131. The reversal of 687125 is 521786.

687125 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 687125 - 2² = 687121 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 687125.

It is not an unprimeable number, because it can be changed into a prime (687121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2756 + ... + 2994.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2⁶⁸⁷¹²⁵ is an apocalyptic number.

It is an amenable number.

687125 is a deficient number, since it is larger than the sum of its proper divisors (211435).

687125 is a wasteful number, since it uses less digits than its factorization.

687125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 267 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 687125 is about 828.9300332356. The cubic root of 687125 is about 88.2426584267.

The spelling of 687125 in words is "six hundred eighty-seven thousand, one hundred twenty-five".