85031868 has 24 divisors (see below), whose sum is σ = 203248080. Its totient is φ = 27652480.

The previous prime is 85031867. The next prime is 85031873. The reversal of 85031868 is 86813058.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85031867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85923 + ... + 86906.

It is an arithmetic number, because the mean of its divisors is an integer number (8468670).

Almost surely, 2^85031868 is an apocalyptic number.

It is an amenable number.

85031868 is an abundant number, since it is smaller than the sum of its proper divisors (118216212).

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

85031868 is a wasteful number, since it uses less digits than its factorization.

85031868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172877 (or 172875 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 85031868 is about 9221.2725802896. The cubic root of 85031868 is about 439.7379086514.

The spelling of 85031868 in words is "eighty-five million, thirty-one thousand, eight hundred sixty-eight".