85859444 has 24 divisors (see below), whose sum is σ = 164148768. Its totient is φ = 38971040.

The previous prime is 85859441. The next prime is 85859447. The reversal of 85859444 is 44495858.

It is an interprime number because it is at equal distance from previous prime (85859441) and next prime (85859447).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85859441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 56762 + ... + 58254.

It is an arithmetic number, because the mean of its divisors is an integer number (6839532).

Almost surely, 2^85859444 is an apocalyptic number.

It is an amenable number.

85859444 is a deficient number, since it is larger than the sum of its proper divisors (78289324).

85859444 is a wasteful number, since it uses less digits than its factorization.

85859444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815 (or 2813 counting only the distinct ones).

The product of its digits is 921600, while the sum is 47.

The square root of 85859444 is about 9266.0371248986. The cubic root of 85859444 is about 441.1598942345.

The spelling of 85859444 in words is "eighty-five million, eight hundred fifty-nine thousand, four hundred forty-four".