444665 has 8 divisors (see below), whose sum is σ = 574728. Its totient is φ = 328320.

The previous prime is 444649. The next prime is 444671. The reversal of 444665 is 566444.

It can be written as a sum of positive squares in 4 ways, for example, as 29929 + 414736 = 173^2 + 644^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 444665 - 2⁴ = 444649 is a prime.

It is a super-3 number, since 3×444665³ = 263766778973338875, which contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3356 + ... + 3485.

It is an arithmetic number, because the mean of its divisors is an integer number (71841).

2⁴⁴⁴⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

444665 is a deficient number, since it is larger than the sum of its proper divisors (130063).

444665 is a wasteful number, since it uses less digits than its factorization.

444665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6859.

The product of its digits is 11520, while the sum is 29.

The square root of 444665 is about 666.8320628164. The cubic root of 444665 is about 76.3269044036.

The spelling of 444665 in words is "four hundred forty-four thousand, six hundred sixty-five".