449845717 has 2 divisors, whose sum is σ = 449845718. Its totient is φ = 449845716.

The previous prime is 449845633. The next prime is 449845733. The reversal of 449845717 is 717548944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 387656721 + 62188996 = 19689^2 + 7886^2 .

It is a cyclic number.

It is not a de Polignac number, because 449845717 - 2²³ = 441457109 is a prime.

It is a super-2 number, since 2×449845717² = 404722338206488178, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449845777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224922858 + 224922859.

It is an arithmetic number, because the mean of its divisors is an integer number (224922859).

Almost surely, 2^449845717 is an apocalyptic number.

It is an amenable number.

449845717 is a deficient number, since it is larger than the sum of its proper divisors (1).

449845717 is an equidigital number, since it uses as much as digits as its factorization.

449845717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 49.

The square root of 449845717 is about 21209.5666386657. The cubic root of 449845717 is about 766.2218457029.

The spelling of 449845717 in words is "four hundred forty-nine million, eight hundred forty-five thousand, seven hundred seventeen".