204841969 has 2 divisors, whose sum is σ = 204841970. Its totient is φ = 204841968.

The previous prime is 204841951. The next prime is 204841991. The reversal of 204841969 is 969148402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176358400 + 28483569 = 13280^2 + 5337^2 .

It is a cyclic number.

It is not a de Polignac number, because 204841969 - 2⁹ = 204841457 is a prime.

It is a super-2 number, since 2×204841969² = 83920464527593922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204841999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102420984 + 102420985.

It is an arithmetic number, because the mean of its divisors is an integer number (102420985).

Almost surely, 2^204841969 is an apocalyptic number.

It is an amenable number.

204841969 is a deficient number, since it is larger than the sum of its proper divisors (1).

204841969 is an equidigital number, since it uses as much as digits as its factorization.

204841969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 204841969 is about 14312.3013173983. The cubic root of 204841969 is about 589.4853013860.

The spelling of 204841969 in words is "two hundred four million, eight hundred forty-one thousand, nine hundred sixty-nine".