685335 has 32 divisors (see below), whose sum is σ = 1285632. Its totient is φ = 305280.

The previous prime is 685319. The next prime is 685337. The reversal of 685335 is 533586.

685335 = T₄₃₉ + T₄₄₀ + ... + T₄₄₅.

It is not a de Polignac number, because 685335 - 2⁴ = 685319 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685337) 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 31 ways as a sum of consecutive naturals, for example, 6352 + ... + 6458.

It is an arithmetic number, because the mean of its divisors is an integer number (40176).

2⁶⁸⁵³³⁵ is an apocalyptic number.

685335 is a deficient number, since it is larger than the sum of its proper divisors (600297).

685335 is a wasteful number, since it uses less digits than its factorization.

685335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183.

The product of its digits is 10800, while the sum is 30.

The square root of 685335 is about 827.8496240260. The cubic root of 685335 is about 88.1659660648.

The spelling of 685335 in words is "six hundred eighty-five thousand, three hundred thirty-five".