199754663 has 2 divisors, whose sum is σ = 199754664. Its totient is φ = 199754662.

The previous prime is 199754629. The next prime is 199754683. The reversal of 199754663 is 366457991.

199754663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199754663 - 2¹² = 199750567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199754683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99877331 + 99877332.

It is an arithmetic number, because the mean of its divisors is an integer number (99877332).

Almost surely, 2^199754663 is an apocalyptic number.

199754663 is a deficient number, since it is larger than the sum of its proper divisors (1).

199754663 is an equidigital number, since it uses as much as digits as its factorization.

199754663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 50.

The square root of 199754663 is about 14133.4589892213. The cubic root of 199754663 is about 584.5643265530.

The spelling of 199754663 in words is "one hundred ninety-nine million, seven hundred fifty-four thousand, six hundred sixty-three".