9945173 has 8 divisors (see below), whose sum is σ = 11758080. Its totient is φ = 8230320.

The previous prime is 9945161. The next prime is 9945181. The reversal of 9945173 is 3715499.

It is a happy number.

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

It is not a de Polignac number, because 9945173 - 2⁴ = 9945157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942173) 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, 24293 + ... + 24698.

It is an arithmetic number, because the mean of its divisors is an integer number (1469760).

Almost surely, 2^9945173 is an apocalyptic number.

It is an amenable number.

9945173 is a deficient number, since it is larger than the sum of its proper divisors (1812907).

9945173 is a wasteful number, since it uses less digits than its factorization.

9945173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49027.

The product of its digits is 34020, while the sum is 38.

The square root of 9945173 is about 3153.5968353612. The cubic root of 9945173 is about 215.0490099197.

The spelling of 9945173 in words is "nine million, nine hundred forty-five thousand, one hundred seventy-three".