853685 has 8 divisors (see below), whose sum is σ = 1170816. Its totient is φ = 585360.

The previous prime is 853669. The next prime is 853687. The reversal of 853685 is 586358.

853685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 853685 - 2⁴ = 853669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 24391 = 853685 / (8 + 5 + 3 + 6 + 8 + 5).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 853685.

It is not an unprimeable number, because it can be changed into a prime (853687) 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, 12161 + ... + 12230.

It is an arithmetic number, because the mean of its divisors is an integer number (146352).

2⁸⁵³⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

853685 is a deficient number, since it is larger than the sum of its proper divisors (317131).

853685 is a wasteful number, since it uses less digits than its factorization.

853685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24403.

The product of its digits is 28800, while the sum is 35.

The square root of 853685 is about 923.9507562636. The cubic root of 853685 is about 94.8635159221.

The spelling of 853685 in words is "eight hundred fifty-three thousand, six hundred eighty-five".