204647243 has 2 divisors, whose sum is σ = 204647244. Its totient is φ = 204647242.

The previous prime is 204647231. The next prime is 204647249. The reversal of 204647243 is 342746402.

204647243 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 204647243 - 2⁴ = 204647227 is a prime.

It is not a weakly prime, because it can be changed into another prime (204647249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102323621 + 102323622.

It is an arithmetic number, because the mean of its divisors is an integer number (102323622).

Almost surely, 2^204647243 is an apocalyptic number.

204647243 is a deficient number, since it is larger than the sum of its proper divisors (1).

204647243 is an equidigital number, since it uses as much as digits as its factorization.

204647243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 204647243 is about 14305.4969504733. The cubic root of 204647243 is about 589.2984508304.

The spelling of 204647243 in words is "two hundred four million, six hundred forty-seven thousand, two hundred forty-three".