996522173 has 4 divisors (see below), whose sum is σ = 1039849248. Its totient is φ = 953195100.

The previous prime is 996522161. The next prime is 996522193. The reversal of 996522173 is 371225699.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 996522173 - 2²⁰ = 995473597 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 (996522103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21663503 + ... + 21663548.

It is an arithmetic number, because the mean of its divisors is an integer number (259962312).

Almost surely, 2^996522173 is an apocalyptic number.

It is an amenable number.

996522173 is a deficient number, since it is larger than the sum of its proper divisors (43327075).

996522173 is a wasteful number, since it uses less digits than its factorization.

996522173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43327074.

The product of its digits is 204120, while the sum is 44.

The square root of 996522173 is about 31567.7394344289. The cubic root of 996522173 is about 998.8393778106.

The spelling of 996522173 in words is "nine hundred ninety-six million, five hundred twenty-two thousand, one hundred seventy-three".