85818173 has 8 divisors (see below), whose sum is σ = 98995392. Its totient is φ = 72870336.

The previous prime is 85818169. The next prime is 85818181. The reversal of 85818173 is 37181858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85818173 - 2² = 85818169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85818173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85818373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56540 + ... + 58037.

It is an arithmetic number, because the mean of its divisors is an integer number (12374424).

Almost surely, 2^85818173 is an apocalyptic number.

It is an amenable number.

85818173 is a deficient number, since it is larger than the sum of its proper divisors (13177219).

85818173 is a wasteful number, since it uses less digits than its factorization.

85818173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114691.

The product of its digits is 53760, while the sum is 41.

The square root of 85818173 is about 9263.8098534026. The cubic root of 85818173 is about 441.0891971852.

The spelling of 85818173 in words is "eighty-five million, eight hundred eighteen thousand, one hundred seventy-three".