204741869 has 2 divisors, whose sum is σ = 204741870. Its totient is φ = 204741868.

The previous prime is 204741821. The next prime is 204741871. The reversal of 204741869 is 968147402.

204741869 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 can be written as a sum of positive squares in only one way, i.e., 120340900 + 84400969 = 10970^2 + 9187^2 .

It is a cyclic number.

It is not a de Polignac number, because 204741869 - 2⁸ = 204741613 is a prime.

It is a super-2 number, since 2×204741869² = 83838465843226322, which contains 22 as substring.

Together with 204741871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204741899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102370934 + 102370935.

It is an arithmetic number, because the mean of its divisors is an integer number (102370935).

Almost surely, 2^204741869 is an apocalyptic number.

It is an amenable number.

204741869 is a deficient number, since it is larger than the sum of its proper divisors (1).

204741869 is an equidigital number, since it uses as much as digits as its factorization.

204741869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 204741869 is about 14308.8038982998. The cubic root of 204741869 is about 589.3892646000.

The spelling of 204741869 in words is "two hundred four million, seven hundred forty-one thousand, eight hundred sixty-nine".