9940199 has 2 divisors, whose sum is σ = 9940200. Its totient is φ = 9940198.

The previous prime is 9940129. The next prime is 9940219. The reversal of 9940199 is 9910499.

It is a strong prime.

It is an emirp because it is prime and its reverse (9910499) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9940199 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9940129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4970099 + 4970100.

It is an arithmetic number, because the mean of its divisors is an integer number (4970100).

Almost surely, 2^9940199 is an apocalyptic number.

9940199 is a deficient number, since it is larger than the sum of its proper divisors (1).

9940199 is an equidigital number, since it uses as much as digits as its factorization.

9940199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 9940199 is about 3152.8081134125. The cubic root of 9940199 is about 215.0131522511.

The spelling of 9940199 in words is "nine million, nine hundred forty thousand, one hundred ninety-nine".