85999170 has 32 divisors (see below), whose sum is σ = 206644032. Its totient is φ = 22905792.

The previous prime is 85999091. The next prime is 85999171. The reversal of 85999170 is 7199958.

It is not an unprimeable number, because it can be changed into a prime (85999171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43524 + ... + 45456.

It is an arithmetic number, because the mean of its divisors is an integer number (6457626).

Almost surely, 2^85999170 is an apocalyptic number.

85999170 is an abundant number, since it is smaller than the sum of its proper divisors (120644862).

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

85999170 is a wasteful number, since it uses less digits than its factorization.

85999170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426.

The product of its (nonzero) digits is 204120, while the sum is 48.

The square root of 85999170 is about 9273.5737447868. The cubic root of 85999170 is about 441.3990762303.

The spelling of 85999170 in words is "eighty-five million, nine hundred ninety-nine thousand, one hundred seventy".