449609617 has 2 divisors, whose sum is σ = 449609618. Its totient is φ = 449609616.

The previous prime is 449609599. The next prime is 449609627. The reversal of 449609617 is 716906944.

It is a Cunningham number, because it is equal to 21204²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 449609616 + 1 = 21204^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 449609617 - 2¹¹ = 449607569 is a prime.

It is not a weakly prime, because it can be changed into another prime (449609627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224804808 + 224804809.

It is an arithmetic number, because the mean of its divisors is an integer number (224804809).

Almost surely, 2^449609617 is an apocalyptic number.

It is an amenable number.

449609617 is a deficient number, since it is larger than the sum of its proper divisors (1).

449609617 is an equidigital number, since it uses as much as digits as its factorization.

449609617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 449609617 is about 21204.0000235805. Note that the first 4 decimals coincide. The cubic root of 449609617 is about 766.0877725980.

The spelling of 449609617 in words is "four hundred forty-nine million, six hundred nine thousand, six hundred seventeen".