9972173 has 8 divisors (see below), whose sum is σ = 10534656. Its totient is φ = 9424800.

The previous prime is 9972161. The next prime is 9972187. The reversal of 9972173 is 3712799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9972173 - 2⁸ = 9971917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9972103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2408 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (1316832).

Almost surely, 2^9972173 is an apocalyptic number.

It is an amenable number.

9972173 is a deficient number, since it is larger than the sum of its proper divisors (562483).

9972173 is a wasteful number, since it uses less digits than its factorization.

9972173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7555.

The product of its digits is 23814, while the sum is 38.

The square root of 9972173 is about 3157.8747600245. The cubic root of 9972173 is about 215.2434451725.

The spelling of 9972173 in words is "nine million, nine hundred seventy-two thousand, one hundred seventy-three".