199099793 has 2 divisors, whose sum is σ = 199099794. Its totient is φ = 199099792.

The previous prime is 199099783. The next prime is 199099837. The reversal of 199099793 is 397990991.

It is a happy number.

199099793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137194369 + 61905424 = 11713^2 + 7868^2 .

It is an emirp because it is prime and its reverse (397990991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199099793 - 2⁴ = 199099777 is a prime.

It is not a weakly prime, because it can be changed into another prime (199099783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99549896 + 99549897.

It is an arithmetic number, because the mean of its divisors is an integer number (99549897).

Almost surely, 2^199099793 is an apocalyptic number.

It is an amenable number.

199099793 is a deficient number, since it is larger than the sum of its proper divisors (1).

199099793 is an equidigital number, since it uses as much as digits as its factorization.

199099793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1240029, while the sum is 56.

The square root of 199099793 is about 14110.2726054460. The cubic root of 199099793 is about 583.9248208489.

The spelling of 199099793 in words is "one hundred ninety-nine million, ninety-nine thousand, seven hundred ninety-three".