449907717 has 16 divisors (see below), whose sum is σ = 688426112. Its totient is φ = 256020480.

The previous prime is 449907709. The next prime is 449907721. The reversal of 449907717 is 717709944.

It is not a de Polignac number, because 449907717 - 2³ = 449907709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449907767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39388 + ... + 49509.

It is an arithmetic number, because the mean of its divisors is an integer number (43026632).

Almost surely, 2^449907717 is an apocalyptic number.

It is an amenable number.

449907717 is a deficient number, since it is larger than the sum of its proper divisors (238518395).

449907717 is a wasteful number, since it uses less digits than its factorization.

449907717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89148.

The product of its (nonzero) digits is 444528, while the sum is 48.

The square root of 449907717 is about 21211.0281929000. The cubic root of 449907717 is about 766.2570456025.

The spelling of 449907717 in words is "four hundred forty-nine million, nine hundred seven thousand, seven hundred seventeen".