85205286 has 12 divisors (see below), whose sum is σ = 184611492. Its totient is φ = 28401756.

The previous prime is 85205269. The next prime is 85205287. The reversal of 85205286 is 68250258.

85205286 is a `hidden beast` number, since 8 + 520 + 52 + 86 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85205286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85205287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2366796 + ... + 2366831.

It is an arithmetic number, because the mean of its divisors is an integer number (15384291).

Almost surely, 2^85205286 is an apocalyptic number.

85205286 is an abundant number, since it is smaller than the sum of its proper divisors (99406206).

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

85205286 is a wasteful number, since it uses less digits than its factorization.

85205286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733635 (or 4733632 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 85205286 is about 9230.6709398613. The cubic root of 85205286 is about 440.0366463968.

It can be divided in two parts, 85205 and 286, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 85205286 in words is "eighty-five million, two hundred five thousand, two hundred eighty-six".