9381973 has 4 divisors (see below), whose sum is σ = 9394380. Its totient is φ = 9369568.

The previous prime is 9381949. The next prime is 9381997. The reversal of 9381973 is 3791839.

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

It is an interprime number because it is at equal distance from previous prime (9381949) and next prime (9381997).

It can be written as a sum of positive squares in 2 ways, for example, as 8254129 + 1127844 = 2873^2 + 1062^2 .

It is a cyclic number.

It is not a de Polignac number, because 9381973 - 2⁵ = 9381941 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9381173) 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 3 ways as a sum of consecutive naturals, for example, 4990 + ... + 6607.

It is an arithmetic number, because the mean of its divisors is an integer number (2348595).

Almost surely, 2^9381973 is an apocalyptic number.

It is an amenable number.

9381973 is a deficient number, since it is larger than the sum of its proper divisors (12407).

9381973 is a wasteful number, since it uses less digits than its factorization.

9381973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406.

The product of its digits is 40824, while the sum is 40.

The square root of 9381973 is about 3063.0006529546. Note that the first 3 decimals coincide. The cubic root of 9381973 is about 210.9104312005.

The spelling of 9381973 in words is "nine million, three hundred eighty-one thousand, nine hundred seventy-three".