199829743 has 2 divisors, whose sum is σ = 199829744. Its totient is φ = 199829742.

The previous prime is 199829737. The next prime is 199829753. The reversal of 199829743 is 347928991.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199829743 - 2¹³ = 199821551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199829723) 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, 99914871 + 99914872.

It is an arithmetic number, because the mean of its divisors is an integer number (99914872).

Almost surely, 2^199829743 is an apocalyptic number.

199829743 is a deficient number, since it is larger than the sum of its proper divisors (1).

199829743 is an equidigital number, since it uses as much as digits as its factorization.

199829743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 52.

The square root of 199829743 is about 14136.1148481469. The cubic root of 199829743 is about 584.6375557022.

The spelling of 199829743 in words is "one hundred ninety-nine million, eight hundred twenty-nine thousand, seven hundred forty-three".