199550927 has 2 divisors, whose sum is σ = 199550928. Its totient is φ = 199550926.

The previous prime is 199550903. The next prime is 199550951. The reversal of 199550927 is 729055991.

It is a balanced prime because it is at equal distance from previous prime (199550903) and next prime (199550951).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199550927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199550327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99775463 + 99775464.

It is an arithmetic number, because the mean of its divisors is an integer number (99775464).

Almost surely, 2^199550927 is an apocalyptic number.

199550927 is a deficient number, since it is larger than the sum of its proper divisors (1).

199550927 is an equidigital number, since it uses as much as digits as its factorization.

199550927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 255150, while the sum is 47.

The square root of 199550927 is about 14126.2495730466. The cubic root of 199550927 is about 584.3655204959.

The spelling of 199550927 in words is "one hundred ninety-nine million, five hundred fifty thousand, nine hundred twenty-seven".