83487173 has 16 divisors (see below), whose sum is σ = 104288256. Its totient is φ = 64929840.

The previous prime is 83487169. The next prime is 83487179. The reversal of 83487173 is 37178438.

It is a cyclic number.

It is not a de Polignac number, because 83487173 - 2² = 83487169 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 83487173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83487179) 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, 75140 + ... + 76242.

It is an arithmetic number, because the mean of its divisors is an integer number (6518016).

Almost surely, 2^83487173 is an apocalyptic number.

It is an amenable number.

83487173 is a deficient number, since it is larger than the sum of its proper divisors (20801083).

83487173 is a wasteful number, since it uses less digits than its factorization.

83487173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104.

The product of its digits is 112896, while the sum is 41.

The square root of 83487173 is about 9137.1315520791. The cubic root of 83487173 is about 437.0588497948.

The spelling of 83487173 in words is "eighty-three million, four hundred eighty-seven thousand, one hundred seventy-three".