200817049 has 2 divisors, whose sum is σ = 200817050. Its totient is φ = 200817048.

The previous prime is 200817047. The next prime is 200817077. The reversal of 200817049 is 940718002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150307600 + 50509449 = 12260^2 + 7107^2 .

It is a cyclic number.

It is not a de Polignac number, because 200817049 - 2¹ = 200817047 is a prime.

Together with 200817047, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200817049.

It is not a weakly prime, because it can be changed into another prime (200817047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100408524 + 100408525.

It is an arithmetic number, because the mean of its divisors is an integer number (100408525).

Almost surely, 2^200817049 is an apocalyptic number.

It is an amenable number.

200817049 is a deficient number, since it is larger than the sum of its proper divisors (1).

200817049 is an equidigital number, since it uses as much as digits as its factorization.

200817049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 200817049 is about 14170.9932256000. The cubic root of 200817049 is about 585.5988209180.

The spelling of 200817049 in words is "two hundred million, eight hundred seventeen thousand, forty-nine".