85591836 has 48 divisors (see below), whose sum is σ = 242081280. Its totient is φ = 25936560.

The previous prime is 85591829. The next prime is 85591853. The reversal of 85591836 is 63819558.

It is a junction number, because it is equal to n+sod(n) for n = 85591791 and 85591800.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 34836 + ... + 37211.

It is an arithmetic number, because the mean of its divisors is an integer number (5043360).

Almost surely, 2^85591836 is an apocalyptic number.

It is an amenable number.

85591836 is an abundant number, since it is smaller than the sum of its proper divisors (156489444).

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

85591836 is a wasteful number, since it uses less digits than its factorization.

85591836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72071 (or 72063 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 85591836 is about 9251.5855938320. The cubic root of 85591836 is about 440.7010793032.

The spelling of 85591836 in words is "eighty-five million, five hundred ninety-one thousand, eight hundred thirty-six".