85791164 has 12 divisors (see below), whose sum is σ = 155311800. Its totient is φ = 41416368.

The previous prime is 85791157. The next prime is 85791179. The reversal of 85791164 is 46119758.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 369674 + ... + 369905.

It is an arithmetic number, because the mean of its divisors is an integer number (12942650).

Almost surely, 2^85791164 is an apocalyptic number.

It is an amenable number.

85791164 is a deficient number, since it is larger than the sum of its proper divisors (69520636).

85791164 is a wasteful number, since it uses less digits than its factorization.

85791164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739612 (or 739610 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The square root of 85791164 is about 9262.3519691275. The cubic root of 85791164 is about 441.0429186106.

The spelling of 85791164 in words is "eighty-five million, seven hundred ninety-one thousand, one hundred sixty-four".