199824329 has 2 divisors, whose sum is σ = 199824330. Its totient is φ = 199824328.

The previous prime is 199824293. The next prime is 199824343. The reversal of 199824329 is 923428991.

Together with previous prime (199824293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195244729 + 4579600 = 13973^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 199824329 - 2⁸ = 199824073 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (199824629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99912164 + 99912165.

It is an arithmetic number, because the mean of its divisors is an integer number (99912165).

Almost surely, 2^199824329 is an apocalyptic number.

It is an amenable number.

199824329 is a deficient number, since it is larger than the sum of its proper divisors (1).

199824329 is an equidigital number, since it uses as much as digits as its factorization.

199824329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 199824329 is about 14135.9233515183. The cubic root of 199824329 is about 584.6322757803.

The spelling of 199824329 in words is "one hundred ninety-nine million, eight hundred twenty-four thousand, three hundred twenty-nine".