199498207 has 2 divisors, whose sum is σ = 199498208. Its totient is φ = 199498206.

The previous prime is 199498193. The next prime is 199498241. The reversal of 199498207 is 702894991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199498207 - 2¹¹ = 199496159 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 (199495207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99749103 + 99749104.

It is an arithmetic number, because the mean of its divisors is an integer number (99749104).

Almost surely, 2^199498207 is an apocalyptic number.

199498207 is a deficient number, since it is larger than the sum of its proper divisors (1).

199498207 is an equidigital number, since it uses as much as digits as its factorization.

199498207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 199498207 is about 14124.3834201709. The cubic root of 199498207 is about 584.3140541624.

The spelling of 199498207 in words is "one hundred ninety-nine million, four hundred ninety-eight thousand, two hundred seven".