444985 has 4 divisors (see below), whose sum is σ = 533988. Its totient is φ = 355984.

The previous prime is 444979. The next prime is 445001. The reversal of 444985 is 589444.

444985 is nontrivially palindromic in base 4.

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 254016 + 190969 = 504^2 + 437^2 .

It is a cyclic number.

It is not a de Polignac number, because 444985 - 2⁵ = 444953 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 444985.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44494 + ... + 44503.

It is an arithmetic number, because the mean of its divisors is an integer number (133497).

2⁴⁴⁴⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

444985 is a deficient number, since it is larger than the sum of its proper divisors (89003).

444985 is an equidigital number, since it uses as much as digits as its factorization.

444985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89002.

The product of its digits is 23040, while the sum is 34.

The square root of 444985 is about 667.0719601362. The cubic root of 444985 is about 76.3452093843.

The spelling of 444985 in words is "four hundred forty-four thousand, nine hundred eighty-five".