449906713 has 4 divisors (see below), whose sum is σ = 450348388. Its totient is φ = 449465040.

The previous prime is 449906711. The next prime is 449906761. The reversal of 449906713 is 317609944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 269353744 + 180552969 = 16412^2 + 13437^2 .

It is a cyclic number.

It is not a de Polignac number, because 449906713 - 2¹ = 449906711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 449906713.

It is not an unprimeable number, because it can be changed into a prime (449906711) 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 3 ways as a sum of consecutive naturals, for example, 219306 + ... + 221347.

It is an arithmetic number, because the mean of its divisors is an integer number (112587097).

Almost surely, 2^449906713 is an apocalyptic number.

It is an amenable number.

449906713 is a deficient number, since it is larger than the sum of its proper divisors (441675).

449906713 is a wasteful number, since it uses less digits than its factorization.

449906713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441674.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 449906713 is about 21211.0045259530. The cubic root of 449906713 is about 766.2564756169.

The spelling of 449906713 in words is "four hundred forty-nine million, nine hundred six thousand, seven hundred thirteen".