685330 has 16 divisors (see below), whose sum is σ = 1298880. Its totient is φ = 259632.

The previous prime is 685319. The next prime is 685337. The reversal of 685330 is 33586.

It is a junction number, because it is equal to n+sod(n) for n = 685295 and 685304.

It is not an unprimeable number, because it can be changed into a prime (685337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614 + ... + 1993.

It is an arithmetic number, because the mean of its divisors is an integer number (81180).

2⁶⁸⁵³³⁰ is an apocalyptic number.

685330 is a deficient number, since it is larger than the sum of its proper divisors (613550).

685330 is a wasteful number, since it uses less digits than its factorization.

685330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 685330 is about 827.8466041484. The cubic root of 685330 is about 88.1657516535.

The spelling of 685330 in words is "six hundred eighty-five thousand, three hundred thirty".