85091170 has 16 divisors (see below), whose sum is σ = 153809280. Its totient is φ = 33893104.

The previous prime is 85091119. The next prime is 85091173. The reversal of 85091170 is 7119058.

It is not an unprimeable number, because it can be changed into a prime (85091173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15412 + ... + 20191.

It is an arithmetic number, because the mean of its divisors is an integer number (9613080).

Almost surely, 2^85091170 is an apocalyptic number.

85091170 is a deficient number, since it is larger than the sum of its proper divisors (68718110).

85091170 is a wasteful number, since it uses less digits than its factorization.

85091170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35849.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 85091170 is about 9224.4875196403. The cubic root of 85091170 is about 439.8401106384.

The spelling of 85091170 in words is "eighty-five million, ninety-one thousand, one hundred seventy".