199999607 has 2 divisors, whose sum is σ = 199999608. Its totient is φ = 199999606.

The previous prime is 199999601. The next prime is 199999609. The reversal of 199999607 is 706999991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199999607 - 2¹⁸ = 199737463 is a prime.

Together with 199999609, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199999601) 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, 99999803 + 99999804.

It is an arithmetic number, because the mean of its divisors is an integer number (99999804).

Almost surely, 2^199999607 is an apocalyptic number.

199999607 is a deficient number, since it is larger than the sum of its proper divisors (1).

199999607 is an equidigital number, since it uses as much as digits as its factorization.

199999607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2480058, while the sum is 59.

The square root of 199999607 is about 14142.1217290759. The cubic root of 199999607 is about 584.8031645960.

The spelling of 199999607 in words is "one hundred ninety-nine million, nine hundred ninety-nine thousand, six hundred seven".