199727383 has 2 divisors, whose sum is σ = 199727384. Its totient is φ = 199727382.

The previous prime is 199727371. The next prime is 199727413. The reversal of 199727383 is 383727991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199727383 - 2²¹ = 197630231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199727083) 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, 99863691 + 99863692.

It is an arithmetic number, because the mean of its divisors is an integer number (99863692).

Almost surely, 2^199727383 is an apocalyptic number.

199727383 is a deficient number, since it is larger than the sum of its proper divisors (1).

199727383 is an equidigital number, since it uses as much as digits as its factorization.

199727383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 49.

The square root of 199727383 is about 14132.4938705099. The cubic root of 199727383 is about 584.5377145070.

The spelling of 199727383 in words is "one hundred ninety-nine million, seven hundred twenty-seven thousand, three hundred eighty-three".