685112 has 8 divisors (see below), whose sum is σ = 1284600. Its totient is φ = 342552.

The previous prime is 685109. The next prime is 685123. The reversal of 685112 is 211586.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42812 + ... + 42827.

It is an arithmetic number, because the mean of its divisors is an integer number (160575).

2⁶⁸⁵¹¹² is an apocalyptic number.

It is an amenable number.

685112 is a deficient number, since it is larger than the sum of its proper divisors (599488).

685112 is a wasteful number, since it uses less digits than its factorization.

685112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85645 (or 85641 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 685112 is about 827.7149267713. The cubic root of 685112 is about 88.1564023025.

Adding to 685112 its reverse (211586), we get a palindrome (896698).

It can be divided in two parts, 685 and 112, that added together give a palindrome (797).

The spelling of 685112 in words is "six hundred eighty-five thousand, one hundred twelve".