85285212 has 24 divisors (see below), whose sum is σ = 199255056. Its totient is φ = 28391808.

The previous prime is 85285183. The next prime is 85285217. The reversal of 85285212 is 21258258.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85285217) 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 7 ways as a sum of consecutive naturals, for example, 6138 + ... + 14430.

It is an arithmetic number, because the mean of its divisors is an integer number (8302294).

Almost surely, 2^85285212 is an apocalyptic number.

It is an amenable number.

85285212 is an abundant number, since it is smaller than the sum of its proper divisors (113969844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85285212 is a wasteful number, since it uses less digits than its factorization.

85285212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9157 (or 9155 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 85285212 is about 9234.9992961559. Note that the first 3 decimals coincide. The cubic root of 85285212 is about 440.1741941136.

The spelling of 85285212 in words is "eighty-five million, two hundred eighty-five thousand, two hundred twelve".