9942199 has 2 divisors, whose sum is σ = 9942200. Its totient is φ = 9942198.

The previous prime is 9942181. The next prime is 9942203. The reversal of 9942199 is 9912499.

It is a strong prime.

It is an emirp because it is prime and its reverse (9912499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9942199 - 2⁵ = 9942167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9942169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4971099 + 4971100.

It is an arithmetic number, because the mean of its divisors is an integer number (4971100).

Almost surely, 2^9942199 is an apocalyptic number.

9942199 is a deficient number, since it is larger than the sum of its proper divisors (1).

9942199 is an equidigital number, since it uses as much as digits as its factorization.

9942199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 43.

The square root of 9942199 is about 3153.1252750248. The cubic root of 9942199 is about 215.0275717299.

The spelling of 9942199 in words is "nine million, nine hundred forty-two thousand, one hundred ninety-nine".