685160 has 32 divisors (see below), whose sum is σ = 1762560. Its totient is φ = 234816.

The previous prime is 685141. The next prime is 685169. The reversal of 685160 is 61586.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685169) by changing a digit.

685160 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 7 ways as a sum of consecutive naturals, for example, 944 + ... + 1503.

It is an arithmetic number, because the mean of its divisors is an integer number (55080).

2⁶⁸⁵¹⁶⁰ is an apocalyptic number.

It is an amenable number.

685160 is an abundant number, since it is smaller than the sum of its proper divisors (1077400).

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

685160 is a wasteful number, since it uses less digits than its factorization.

685160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465 (or 2461 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 685160 is about 827.7439217536. The cubic root of 685160 is about 88.1584610454.

The spelling of 685160 in words is "six hundred eighty-five thousand, one hundred sixty".