685082 has 8 divisors (see below), whose sum is σ = 1040256. Its totient is φ = 338332.

The previous prime is 685081. The next prime is 685093. The reversal of 685082 is 280586.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (685081) 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, 1898 + ... + 2229.

It is an arithmetic number, because the mean of its divisors is an integer number (130032).

2⁶⁸⁵⁰⁸² is an apocalyptic number.

685082 is a deficient number, since it is larger than the sum of its proper divisors (355174).

685082 is a wasteful number, since it uses less digits than its factorization.

685082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4212.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 685082 is about 827.6968043916. The cubic root of 685082 is about 88.1551155393.

Subtracting from 685082 its reverse (280586), we obtain a square (404496 = 636²).

The spelling of 685082 in words is "six hundred eighty-five thousand, eighty-two".