853959685 has 32 divisors (see below), whose sum is σ = 1079350272. Its totient is φ = 647915520.

The previous prime is 853959653. The next prime is 853959727. The reversal of 853959685 is 586959358.

It is not a de Polignac number, because 853959685 - 2⁵ = 853959653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2533837 + ... + 2534173.

It is an arithmetic number, because the mean of its divisors is an integer number (33729696).

Almost surely, 2^853959685 is an apocalyptic number.

It is an amenable number.

853959685 is a deficient number, since it is larger than the sum of its proper divisors (225390587).

853959685 is a wasteful number, since it uses less digits than its factorization.

853959685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its digits is 11664000, while the sum is 58.

The square root of 853959685 is about 29222.5886088142. The cubic root of 853959685 is about 948.7368938205.

The spelling of 853959685 in words is "eight hundred fifty-three million, nine hundred fifty-nine thousand, six hundred eighty-five".