4442665 has 4 divisors (see below), whose sum is σ = 5331204. Its totient is φ = 3554128.

The previous prime is 4442663. The next prime is 4442681. The reversal of 4442665 is 5662444.

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 1996569 + 2446096 = 1413^2 + 1564^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442665 - 2¹ = 4442663 is a prime.

It is a d-powerful number, because it can be written as 4 + 4⁴ + 4⁸ + 2²¹ + 6⁶ + 6⁷ + 5⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4442663) 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, 444262 + ... + 444271.

It is an arithmetic number, because the mean of its divisors is an integer number (1332801).

Almost surely, 2^4442665 is an apocalyptic number.

It is an amenable number.

4442665 is a deficient number, since it is larger than the sum of its proper divisors (888539).

4442665 is an equidigital number, since it uses as much as digits as its factorization.

4442665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888538.

The product of its digits is 23040, while the sum is 31.

The square root of 4442665 is about 2107.7630322216. The cubic root of 4442665 is about 164.3921929228.

The spelling of 4442665 in words is "four million, four hundred forty-two thousand, six hundred sixty-five".