85199598 has 48 divisors (see below), whose sum is σ = 206084736. Its totient is φ = 25215120.

The previous prime is 85199581. The next prime is 85199623. The reversal of 85199598 is 89599158.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3511 + ... + 13517.

It is an arithmetic number, because the mean of its divisors is an integer number (4293432).

Almost surely, 2^85199598 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85199598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103042368).

85199598 is an abundant number, since it is smaller than the sum of its proper divisors (120885138).

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

85199598 is a wasteful number, since it uses less digits than its factorization.

85199598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10069 (or 10066 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 54.

The square root of 85199598 is about 9230.3628314384. The cubic root of 85199598 is about 440.0268544216.

The spelling of 85199598 in words is "eighty-five million, one hundred ninety-nine thousand, five hundred ninety-eight".