685488 has 20 divisors (see below), whose sum is σ = 1770968. Its totient is φ = 228480.

The previous prime is 685471. The next prime is 685493. The reversal of 685488 is 884586.

685488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 685488.

It is an unprimeable number.

685488 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7093 + ... + 7188.

2⁶⁸⁵⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

685488 is an abundant number, since it is smaller than the sum of its proper divisors (1085480).

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

685488 is a wasteful number, since it uses less digits than its factorization.

685488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14292 (or 14286 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 685488 is about 827.9420269560. The cubic root of 685488 is about 88.1725265494.

The spelling of 685488 in words is "six hundred eighty-five thousand, four hundred eighty-eight".