687268 has 12 divisors (see below), whose sum is σ = 1266160. Its totient is φ = 325512.

The previous prime is 687233. The next prime is 687277. The reversal of 687268 is 862786.

687268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4446 + ... + 4597.

2⁶⁸⁷²⁶⁸ is an apocalyptic number.

It is an amenable number.

687268 is a deficient number, since it is larger than the sum of its proper divisors (578892).

687268 is a wasteful number, since it uses less digits than its factorization.

687268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9066 (or 9064 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 687268 is about 829.0162845204. The cubic root of 687268 is about 88.2487794988.

The spelling of 687268 in words is "six hundred eighty-seven thousand, two hundred sixty-eight".