449789 has 4 divisors (see below), whose sum is σ = 454524. Its totient is φ = 445056.

The previous prime is 449783. The next prime is 449797. The reversal of 449789 is 987944.

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 156025 + 293764 = 395^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 449789 - 2⁴ = 449773 is a prime.

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 449789.

It is not an unprimeable number, because it can be changed into a prime (449783) 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, 2222 + ... + 2415.

It is an arithmetic number, because the mean of its divisors is an integer number (113631).

2⁴⁴⁹⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

449789 is a deficient number, since it is larger than the sum of its proper divisors (4735).

449789 is an equidigital number, since it uses as much as digits as its factorization.

449789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734.

The product of its digits is 72576, while the sum is 41.

The square root of 449789 is about 670.6631046956. The cubic root of 449789 is about 76.6189642343.

The spelling of 449789 in words is "four hundred forty-nine thousand, seven hundred eighty-nine".