449517 has 4 divisors (see below), whose sum is σ = 599360. Its totient is φ = 299676.

The previous prime is 449473. The next prime is 449543. The reversal of 449517 is 715944.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 449517 - 2⁸ = 449261 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 449517.

It is not an unprimeable number, because it can be changed into a prime (449557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74917 + ... + 74922.

It is an arithmetic number, because the mean of its divisors is an integer number (149840).

2⁴⁴⁹⁵¹⁷ is an apocalyptic number.

It is an amenable number.

449517 is a deficient number, since it is larger than the sum of its proper divisors (149843).

449517 is a wasteful number, since it uses less digits than its factorization.

449517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149842.

The product of its digits is 5040, while the sum is 30.

The square root of 449517 is about 670.4602896518. The cubic root of 449517 is about 76.6035165758.

The spelling of 449517 in words is "four hundred forty-nine thousand, five hundred seventeen".