204427291 has 2 divisors, whose sum is σ = 204427292. Its totient is φ = 204427290.

The previous prime is 204427259. The next prime is 204427303. The reversal of 204427291 is 192724402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204427291 - 2⁵ = 204427259 is a prime.

It is not a weakly prime, because it can be changed into another prime (204427231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102213645 + 102213646.

It is an arithmetic number, because the mean of its divisors is an integer number (102213646).

Almost surely, 2^204427291 is an apocalyptic number.

204427291 is a deficient number, since it is larger than the sum of its proper divisors (1).

204427291 is an equidigital number, since it uses as much as digits as its factorization.

204427291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 204427291 is about 14297.8072094989. The cubic root of 204427291 is about 589.0872518982.

The spelling of 204427291 in words is "two hundred four million, four hundred twenty-seven thousand, two hundred ninety-one".