199368907 has 2 divisors, whose sum is σ = 199368908. Its totient is φ = 199368906.

The previous prime is 199368893. The next prime is 199368931. The reversal of 199368907 is 709863991.

It is a weak prime.

It is an emirp because it is prime and its reverse (709863991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199368907 - 2²³ = 190980299 is a prime.

It is a super-2 number, since 2×199368907² = 79495922156749298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (199368977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99684453 + 99684454.

It is an arithmetic number, because the mean of its divisors is an integer number (99684454).

Almost surely, 2^199368907 is an apocalyptic number.

199368907 is a deficient number, since it is larger than the sum of its proper divisors (1).

199368907 is an equidigital number, since it uses as much as digits as its factorization.

199368907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 199368907 is about 14119.8054873288. The cubic root of 199368907 is about 584.1877904788.

The spelling of 199368907 in words is "one hundred ninety-nine million, three hundred sixty-eight thousand, nine hundred seven".