685235 has 8 divisors (see below), whose sum is σ = 865680. Its totient is φ = 519264.

The previous prime is 685231. The next prime is 685247. The reversal of 685235 is 532586.

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

It is a cyclic number.

It is not a de Polignac number, because 685235 - 2² = 685231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 685198 and 685207.

It is not an unprimeable number, because it can be changed into a prime (685231) 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 7 ways as a sum of consecutive naturals, for example, 3512 + ... + 3701.

It is an arithmetic number, because the mean of its divisors is an integer number (108210).

2⁶⁸⁵²³⁵ is an apocalyptic number.

685235 is a deficient number, since it is larger than the sum of its proper divisors (180445).

685235 is a wasteful number, since it uses less digits than its factorization.

685235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7237.

The product of its digits is 7200, while the sum is 29.

The square root of 685235 is about 827.7892243802. The cubic root of 685235 is about 88.1616776388.

The spelling of 685235 in words is "six hundred eighty-five thousand, two hundred thirty-five".