85208685 has 16 divisors (see below), whose sum is σ = 138646080. Its totient is φ = 44673920.

The previous prime is 85208681. The next prime is 85208693. The reversal of 85208685 is 58680258.

It is not a de Polignac number, because 85208685 - 2² = 85208681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85208681) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 47256 + ... + 49025.

It is an arithmetic number, because the mean of its divisors is an integer number (8665380).

Almost surely, 2^85208685 is an apocalyptic number.

It is an amenable number.

85208685 is a deficient number, since it is larger than the sum of its proper divisors (53437395).

85208685 is a wasteful number, since it uses less digits than its factorization.

85208685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96348.

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 85208685 is about 9230.8550524857. The cubic root of 85208685 is about 440.0424976170.

It can be divided in two parts, 8520 and 8685, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 85208685 in words is "eighty-five million, two hundred eight thousand, six hundred eighty-five".