83173903 has 4 divisors (see below), whose sum is σ = 83192560. Its totient is φ = 83155248.

The previous prime is 83173859. The next prime is 83173913. The reversal of 83173903 is 30937138.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30937138 = 2 ⋅15468569.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83173903 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 (83173913) 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 3 ways as a sum of consecutive naturals, for example, 1726 + ... + 13012.

It is an arithmetic number, because the mean of its divisors is an integer number (20798140).

Almost surely, 2^83173903 is an apocalyptic number.

83173903 is a deficient number, since it is larger than the sum of its proper divisors (18657).

83173903 is a wasteful number, since it uses less digits than its factorization.

83173903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18656.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 83173903 is about 9119.9727521523. The cubic root of 83173903 is about 436.5115040922.

The spelling of 83173903 in words is "eighty-three million, one hundred seventy-three thousand, nine hundred three".