83500173 has 16 divisors (see below), whose sum is σ = 124469440. Its totient is φ = 55322352.

The previous prime is 83500159. The next prime is 83500177. The reversal of 83500173 is 37100538.

It is a de Polignac number, because none of the positive numbers 2^k-83500173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83500177) 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, 5086 + ... + 13887.

It is an arithmetic number, because the mean of its divisors is an integer number (7779340).

Almost surely, 2^83500173 is an apocalyptic number.

It is an amenable number.

83500173 is a deficient number, since it is larger than the sum of its proper divisors (40969267).

83500173 is a wasteful number, since it uses less digits than its factorization.

83500173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19145 (or 19139 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 83500173 is about 9137.8429073825. The cubic root of 83500173 is about 437.0815337991.

The spelling of 83500173 in words is "eighty-three million, five hundred thousand, one hundred seventy-three".