9975173 has 4 divisors (see below), whose sum is σ = 10742508. Its totient is φ = 9207840.

The previous prime is 9975157. The next prime is 9975181. The reversal of 9975173 is 3715799.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1582564 + 8392609 = 1258^2 + 2897^2 .

It is a cyclic number.

It is not a de Polignac number, because 9975173 - 2⁴ = 9975157 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 9975173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9975193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383648 + ... + 383673.

It is an arithmetic number, because the mean of its divisors is an integer number (2685627).

Almost surely, 2^9975173 is an apocalyptic number.

It is an amenable number.

9975173 is a deficient number, since it is larger than the sum of its proper divisors (767335).

9975173 is a wasteful number, since it uses less digits than its factorization.

9975173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767334.

The product of its digits is 59535, while the sum is 41.

The square root of 9975173 is about 3158.3497273101. The cubic root of 9975173 is about 215.2650274158.

The spelling of 9975173 in words is "nine million, nine hundred seventy-five thousand, one hundred seventy-three".