85839000 has 256 divisors, whose sum is σ = 301916160. Its totient is φ = 20160000.

The previous prime is 85838989. The next prime is 85839023. The reversal of 85839000 is 93858.

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 63 ways as a sum of consecutive naturals, for example, 1208965 + ... + 1209035.

It is an arithmetic number, because the mean of its divisors is an integer number (1179360).

Almost surely, 2^85839000 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 85839000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150958080).

85839000 is an abundant number, since it is smaller than the sum of its proper divisors (216077160).

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

85839000 is a wasteful number, since it uses less digits than its factorization.

85839000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 85839000 is about 9264.9338907517. The cubic root of 85839000 is about 441.1248765809.

The spelling of 85839000 in words is "eighty-five million, eight hundred thirty-nine thousand".