685118 has 12 divisors (see below), whose sum is σ = 1195632. Its totient is φ = 293580.

The previous prime is 685109. The next prime is 685123. The reversal of 685118 is 811586.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3398 + ... + 3593.

It is an arithmetic number, because the mean of its divisors is an integer number (99636).

2⁶⁸⁵¹¹⁸ is an apocalyptic number.

685118 is a deficient number, since it is larger than the sum of its proper divisors (510514).

685118 is a wasteful number, since it uses less digits than its factorization.

685118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7007 (or 7000 counting only the distinct ones).

The product of its digits is 1920, while the sum is 29.

The square root of 685118 is about 827.7185511996. The cubic root of 685118 is about 88.1566596506.

The spelling of 685118 in words is "six hundred eighty-five thousand, one hundred eighteen".