685233 has 16 divisors (see below), whose sum is σ = 1041600. Its totient is φ = 444960.

The previous prime is 685231. The next prime is 685247. The reversal of 685233 is 332586.

685233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 685233 - 2¹ = 685231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

685233 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 685197 and 685206.

It is not an unprimeable number, because it can be changed into a prime (685231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798 + ... + 1416.

It is an arithmetic number, because the mean of its divisors is an integer number (65100).

2⁶⁸⁵²³³ is an apocalyptic number.

It is an amenable number.

685233 is a deficient number, since it is larger than the sum of its proper divisors (356367).

685233 is a wasteful number, since it uses less digits than its factorization.

685233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 663 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 685233 is about 827.7880163423. The cubic root of 685233 is about 88.1615918660.

The spelling of 685233 in words is "six hundred eighty-five thousand, two hundred thirty-three".