199392827 has 2 divisors, whose sum is σ = 199392828. Its totient is φ = 199392826.

The previous prime is 199392811. The next prime is 199392829. The reversal of 199392827 is 728293991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199392827 - 2⁴ = 199392811 is a prime.

Together with 199392829, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (199392829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99696413 + 99696414.

It is an arithmetic number, because the mean of its divisors is an integer number (99696414).

Almost surely, 2^199392827 is an apocalyptic number.

199392827 is a deficient number, since it is larger than the sum of its proper divisors (1).

199392827 is an equidigital number, since it uses as much as digits as its factorization.

199392827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 50.

The square root of 199392827 is about 14120.6524990880. The cubic root of 199392827 is about 584.2111528866.

The spelling of 199392827 in words is "one hundred ninety-nine million, three hundred ninety-two thousand, eight hundred twenty-seven".