685494 has 12 divisors (see below), whose sum is σ = 1485276. Its totient is φ = 228492.

The previous prime is 685493. The next prime is 685511. The reversal of 685494 is 494586.

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 685494.

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19024 + ... + 19059.

It is an arithmetic number, because the mean of its divisors is an integer number (123773).

2⁶⁸⁵⁴⁹⁴ is an apocalyptic number.

685494 is an abundant number, since it is smaller than the sum of its proper divisors (799782).

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

685494 is a wasteful number, since it uses less digits than its factorization.

685494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38091 (or 38088 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 685494 is about 827.9456503902. The cubic root of 685494 is about 88.1727838034.

The spelling of 685494 in words is "six hundred eighty-five thousand, four hundred ninety-four".