204344017 has 2 divisors, whose sum is σ = 204344018. Its totient is φ = 204344016.

The previous prime is 204344011. The next prime is 204344047. The reversal of 204344017 is 710443402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152374336 + 51969681 = 12344^2 + 7209^2 .

It is a cyclic number.

It is not a de Polignac number, because 204344017 - 2¹⁵ = 204311249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204343982 and 204344000.

It is not a weakly prime, because it can be changed into another prime (204344011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102172008 + 102172009.

It is an arithmetic number, because the mean of its divisors is an integer number (102172009).

Almost surely, 2^204344017 is an apocalyptic number.

It is an amenable number.

204344017 is a deficient number, since it is larger than the sum of its proper divisors (1).

204344017 is an equidigital number, since it uses as much as digits as its factorization.

204344017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 204344017 is about 14294.8947880004. The cubic root of 204344017 is about 589.0072522823.

Adding to 204344017 its reverse (710443402), we get a palindrome (914787419).

The spelling of 204344017 in words is "two hundred four million, three hundred forty-four thousand, seventeen".