441665 has 8 divisors (see below), whose sum is σ = 605760. Its totient is φ = 302832.

The previous prime is 441647. The next prime is 441667. The reversal of 441665 is 566144.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 441665 - 2¹⁰ = 440641 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (441667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6275 + ... + 6344.

It is an arithmetic number, because the mean of its divisors is an integer number (75720).

2⁴⁴¹⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

441665 is a deficient number, since it is larger than the sum of its proper divisors (164095).

441665 is a wasteful number, since it uses less digits than its factorization.

441665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12631.

The product of its digits is 2880, while the sum is 26.

The square root of 441665 is about 664.5788139867. The cubic root of 441665 is about 76.1548665750.

The spelling of 441665 in words is "four hundred forty-one thousand, six hundred sixty-five".