84999173 has 8 divisors (see below), whose sum is σ = 99124800. Its totient is φ = 72856140.

The previous prime is 84999163. The next prime is 84999209. The reversal of 84999173 is 37199948.

It is not a de Polignac number, because 84999173 - 2¹⁶ = 84933637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84999163) 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, 123563 + ... + 124248.

It is an arithmetic number, because the mean of its divisors is an integer number (12390600).

Almost surely, 2^84999173 is an apocalyptic number.

It is an amenable number.

84999173 is a deficient number, since it is larger than the sum of its proper divisors (14125627).

84999173 is an equidigital number, since it uses as much as digits as its factorization.

84999173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247832 (or 247818 counting only the distinct ones).

The product of its digits is 489888, while the sum is 50.

The square root of 84999173 is about 9219.4996068116. The cubic root of 84999173 is about 439.6815412590.

The spelling of 84999173 in words is "eighty-four million, nine hundred ninety-nine thousand, one hundred seventy-three".