449317723 has 4 divisors (see below), whose sum is σ = 450385408. Its totient is φ = 448250040.

The previous prime is 449317721. The next prime is 449317727. The reversal of 449317723 is 327713944.

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

It is a cyclic number.

It is not a de Polignac number, because 449317723 - 2¹ = 449317721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449317721) 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, 533211 + ... + 534052.

It is an arithmetic number, because the mean of its divisors is an integer number (112596352).

Almost surely, 2^449317723 is an apocalyptic number.

449317723 is a deficient number, since it is larger than the sum of its proper divisors (1067685).

449317723 is a wasteful number, since it uses less digits than its factorization.

449317723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067684.

The product of its digits is 127008, while the sum is 40.

The square root of 449317723 is about 21197.1159123122. The cubic root of 449317723 is about 765.9219510903.

The spelling of 449317723 in words is "four hundred forty-nine million, three hundred seventeen thousand, seven hundred twenty-three".