85236812 has 24 divisors (see below), whose sum is σ = 158269440. Its totient is φ = 40052880.

The previous prime is 85236787. The next prime is 85236821. The reversal of 85236812 is 21863258.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5237 + ... + 14067.

It is an arithmetic number, because the mean of its divisors is an integer number (6594560).

Almost surely, 2^85236812 is an apocalyptic number.

It is an amenable number.

85236812 is a deficient number, since it is larger than the sum of its proper divisors (73032628).

85236812 is a wasteful number, since it uses less digits than its factorization.

85236812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8981 (or 8979 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 85236812 is about 9232.3784584472. The cubic root of 85236812 is about 440.0909109671.

The spelling of 85236812 in words is "eighty-five million, two hundred thirty-six thousand, eight hundred twelve".