199937713 has 2 divisors, whose sum is σ = 199937714. Its totient is φ = 199937712.

The previous prime is 199937707. The next prime is 199937723. The reversal of 199937713 is 317739991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199854769 + 82944 = 14137^2 + 288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199937713 is a prime.

It is not a weakly prime, because it can be changed into another prime (199937723) 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, 99968856 + 99968857.

It is an arithmetic number, because the mean of its divisors is an integer number (99968857).

Almost surely, 2^199937713 is an apocalyptic number.

It is an amenable number.

199937713 is a deficient number, since it is larger than the sum of its proper divisors (1).

199937713 is an equidigital number, since it uses as much as digits as its factorization.

199937713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 321489, while the sum is 49.

The square root of 199937713 is about 14139.9332742414. The cubic root of 199937713 is about 584.7428319082.

The spelling of 199937713 in words is "one hundred ninety-nine million, nine hundred thirty-seven thousand, seven hundred thirteen".