199336387 has 2 divisors, whose sum is σ = 199336388. Its totient is φ = 199336386.

The previous prime is 199336381. The next prime is 199336409. The reversal of 199336387 is 783633991.

199336387 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199336387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199336387.

It is not a weakly prime, because it can be changed into another prime (199336381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99668193 + 99668194.

It is an arithmetic number, because the mean of its divisors is an integer number (99668194).

Almost surely, 2^199336387 is an apocalyptic number.

199336387 is a deficient number, since it is larger than the sum of its proper divisors (1).

199336387 is an equidigital number, since it uses as much as digits as its factorization.

199336387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 49.

The square root of 199336387 is about 14118.6538664279. The cubic root of 199336387 is about 584.1560255457.

The spelling of 199336387 in words is "one hundred ninety-nine million, three hundred thirty-six thousand, three hundred eighty-seven".