85115964 has 24 divisors (see below), whose sum is σ = 198858240. Its totient is φ = 28335664.

The previous prime is 85115911. The next prime is 85115969. The reversal of 85115964 is 46951158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85115969) by changing a digit.

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, 6247 + ... + 14465.

It is an arithmetic number, because the mean of its divisors is an integer number (8285760).

Almost surely, 2^85115964 is an apocalyptic number.

It is an amenable number.

85115964 is an abundant number, since it is smaller than the sum of its proper divisors (113742276).

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

85115964 is a wasteful number, since it uses less digits than its factorization.

85115964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9089 (or 9087 counting only the distinct ones).

The product of its digits is 43200, while the sum is 39.

The square root of 85115964 is about 9225.8313446540. The cubic root of 85115964 is about 439.8828269260.

The spelling of 85115964 in words is "eighty-five million, one hundred fifteen thousand, nine hundred sixty-four".