199832407 has 2 divisors, whose sum is σ = 199832408. Its totient is φ = 199832406.

The previous prime is 199832383. The next prime is 199832429. The reversal of 199832407 is 704238991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199832407 - 2²³ = 191443799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199832497) 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, 99916203 + 99916204.

It is an arithmetic number, because the mean of its divisors is an integer number (99916204).

Almost surely, 2^199832407 is an apocalyptic number.

199832407 is a deficient number, since it is larger than the sum of its proper divisors (1).

199832407 is an equidigital number, since it uses as much as digits as its factorization.

199832407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 199832407 is about 14136.2090745716. The cubic root of 199832407 is about 584.6401536930.

The spelling of 199832407 in words is "one hundred ninety-nine million, eight hundred thirty-two thousand, four hundred seven".