85175808 has 80 divisors (see below), whose sum is σ = 236877696. Its totient is φ = 27146240.

The previous prime is 85175801. The next prime is 85175843. The reversal of 85175808 is 80857158.

It is a self number, because there is not a number n which added to its sum of digits gives 85175808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85175801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34123 + ... + 36533.

Almost surely, 2^85175808 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 85175808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118438848).

85175808 is an abundant number, since it is smaller than the sum of its proper divisors (151701888).

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

85175808 is a wasteful number, since it uses less digits than its factorization.

85175808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455 (or 2439 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 42.

The square root of 85175808 is about 9229.0740597310. The cubic root of 85175808 is about 439.9858948646.

The spelling of 85175808 in words is "eighty-five million, one hundred seventy-five thousand, eight hundred eight".