685496 has 16 divisors (see below), whose sum is σ = 1469040. Its totient is φ = 293760.

The previous prime is 685493. The next prime is 685511. The reversal of 685496 is 694586.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 685496.

It is not an unprimeable number, because it can be changed into a prime (685493) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6065 + ... + 6176.

It is an arithmetic number, because the mean of its divisors is an integer number (91815).

2⁶⁸⁵⁴⁹⁶ is an apocalyptic number.

It is an amenable number.

685496 is an abundant number, since it is smaller than the sum of its proper divisors (783544).

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

685496 is a wasteful number, since it uses less digits than its factorization.

685496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12254 (or 12250 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 685496 is about 827.9468581980. The cubic root of 685496 is about 88.1728695544.

The spelling of 685496 in words is "six hundred eighty-five thousand, four hundred ninety-six".