204746669 has 2 divisors, whose sum is σ = 204746670. Its totient is φ = 204746668.

The previous prime is 204746629. The next prime is 204746671. The reversal of 204746669 is 966647402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187416100 + 17330569 = 13690^2 + 4163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204746669 is a prime.

It is a super-2 number, since 2×204746669² = 83842396933191122, which contains 22 as substring.

Together with 204746671, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204746629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102373334 + 102373335.

It is an arithmetic number, because the mean of its divisors is an integer number (102373335).

Almost surely, 2^204746669 is an apocalyptic number.

It is an amenable number.

204746669 is a deficient number, since it is larger than the sum of its proper divisors (1).

204746669 is an equidigital number, since it uses as much as digits as its factorization.

204746669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 204746669 is about 14308.9716262211. The cubic root of 204746669 is about 589.3938704750.

The spelling of 204746669 in words is "two hundred four million, seven hundred forty-six thousand, six hundred sixty-nine".