85216173 has 16 divisors (see below), whose sum is σ = 135499776. Its totient is φ = 46577520.

The previous prime is 85216171. The next prime is 85216213. The reversal of 85216173 is 37161258.

It is not a de Polignac number, because 85216173 - 2¹ = 85216171 is a prime.

It is a super-2 number, since 2×85216173² = 14523592281531858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85216171) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 87733 + ... + 88698.

It is an arithmetic number, because the mean of its divisors is an integer number (8468736).

Almost surely, 2^85216173 is an apocalyptic number.

It is an amenable number.

85216173 is a deficient number, since it is larger than the sum of its proper divisors (50283603).

85216173 is a wasteful number, since it uses less digits than its factorization.

85216173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176464.

The product of its digits is 10080, while the sum is 33.

The square root of 85216173 is about 9231.2606398043. The cubic root of 85216173 is about 440.0553873113.

The spelling of 85216173 in words is "eighty-five million, two hundred sixteen thousand, one hundred seventy-three".