85989536 has 48 divisors (see below), whose sum is σ = 185068800. Its totient is φ = 39152640.

The previous prime is 85989511. The next prime is 85989559. The reversal of 85989536 is 63598958.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14315 + ... + 19413.

It is an arithmetic number, because the mean of its divisors is an integer number (3855600).

Almost surely, 2^85989536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85989536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92534400).

85989536 is an abundant number, since it is smaller than the sum of its proper divisors (99079264).

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

85989536 is a wasteful number, since it uses less digits than its factorization.

85989536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157 (or 5149 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 53.

The square root of 85989536 is about 9273.0542972637. The cubic root of 85989536 is about 441.3825931352.

The spelling of 85989536 in words is "eighty-five million, nine hundred eighty-nine thousand, five hundred thirty-six".