9942173 has 2 divisors, whose sum is σ = 9942174. Its totient is φ = 9942172.

The previous prime is 9942169. The next prime is 9942181. The reversal of 9942173 is 3712499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9597604 + 344569 = 3098^2 + 587^2 .

It is a cyclic number.

It is not a de Polignac number, because 9942173 - 2² = 9942169 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9942133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4971086 + 4971087.

It is an arithmetic number, because the mean of its divisors is an integer number (4971087).

Almost surely, 2^9942173 is an apocalyptic number.

It is an amenable number.

9942173 is a deficient number, since it is larger than the sum of its proper divisors (1).

9942173 is an equidigital number, since it uses as much as digits as its factorization.

9942173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 9942173 is about 3153.1211521285. The cubic root of 9942173 is about 215.0273842891.

The spelling of 9942173 in words is "nine million, nine hundred forty-two thousand, one hundred seventy-three".