685896 has 16 divisors (see below), whose sum is σ = 1714800. Its totient is φ = 228624.

The previous prime is 685859. The next prime is 685907. The reversal of 685896 is 698586.

685896 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, 14266 + ... + 14313.

It is an arithmetic number, because the mean of its divisors is an integer number (107175).

2⁶⁸⁵⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

685896 is an abundant number, since it is smaller than the sum of its proper divisors (1028904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685896 is a wasteful number, since it uses less digits than its factorization.

685896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28588 (or 28584 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 685896 is about 828.1883843667. The cubic root of 685896 is about 88.1900164038.

The spelling of 685896 in words is "six hundred eighty-five thousand, eight hundred ninety-six".