685036 has 12 divisors (see below), whose sum is σ = 1307880. Its totient is φ = 311360.

The previous prime is 685031. The next prime is 685039. The reversal of 685036 is 630586.

It is a pancake number, because a pancake can be divided into 685036 parts by 1170 straight cuts.

It is a junction number, because it is equal to n+sod(n) for n = 684995 and 685013.

It is not an unprimeable number, because it can be changed into a prime (685031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7741 + ... + 7828.

It is an arithmetic number, because the mean of its divisors is an integer number (108990).

2⁶⁸⁵⁰³⁶ is an apocalyptic number.

It is an amenable number.

685036 is a deficient number, since it is larger than the sum of its proper divisors (622844).

685036 is a wasteful number, since it uses less digits than its factorization.

685036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15584 (or 15582 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 685036 is about 827.6690159720. The cubic root of 685036 is about 88.1531424295.

It can be divided in two parts, 6850 and 36, that added together give a palindrome (6886).

The spelling of 685036 in words is "six hundred eighty-five thousand, thirty-six".