199764329 has 2 divisors, whose sum is σ = 199764330. Its totient is φ = 199764328.

The previous prime is 199764293. The next prime is 199764343. The reversal of 199764329 is 923467991.

199764329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (199764293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197346304 + 2418025 = 14048^2 + 1555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199764329 is a prime.

It is not a weakly prime, because it can be changed into another prime (199764379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99882164 + 99882165.

It is an arithmetic number, because the mean of its divisors is an integer number (99882165).

Almost surely, 2^199764329 is an apocalyptic number.

It is an amenable number.

199764329 is a deficient number, since it is larger than the sum of its proper divisors (1).

199764329 is an equidigital number, since it uses as much as digits as its factorization.

199764329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 50.

The square root of 199764329 is about 14133.8009395916. The cubic root of 199764329 is about 584.5737552985.

The spelling of 199764329 in words is "one hundred ninety-nine million, seven hundred sixty-four thousand, three hundred twenty-nine".