449623 has 4 divisors (see below), whose sum is σ = 451008. Its totient is φ = 448240.

The previous prime is 449621. The next prime is 449629. The reversal of 449623 is 326944.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 449623 - 2¹ = 449621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449591 and 449600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449621) 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, 90 + ... + 952.

It is an arithmetic number, because the mean of its divisors is an integer number (112752).

2⁴⁴⁹⁶²³ is an apocalyptic number.

449623 is a deficient number, since it is larger than the sum of its proper divisors (1385).

449623 is an equidigital number, since it uses as much as digits as its factorization.

449623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384.

The product of its digits is 5184, while the sum is 28.

The square root of 449623 is about 670.5393351624. The cubic root of 449623 is about 76.6095373600.

The spelling of 449623 in words is "four hundred forty-nine thousand, six hundred twenty-three".