4421005 has 4 divisors (see below), whose sum is σ = 5305212. Its totient is φ = 3536800.

The previous prime is 4420993. The next prime is 4421023. The reversal of 4421005 is 5001244.

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 1695204 + 2725801 = 1302^2 + 1651^2 .

It is not a de Polignac number, because 4421005 - 2¹³ = 4412813 is a prime.

It is a Duffinian number.

4421005 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4421005.

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, 442096 + ... + 442105.

It is an arithmetic number, because the mean of its divisors is an integer number (1326303).

Almost surely, 2^4421005 is an apocalyptic number.

It is an amenable number.

4421005 is a deficient number, since it is larger than the sum of its proper divisors (884207).

4421005 is an equidigital number, since it uses as much as digits as its factorization.

4421005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884206.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4421005 is about 2102.6186054537. The cubic root of 4421005 is about 164.1245954819.

Adding to 4421005 its reverse (5001244), we get a palindrome (9422249).

The spelling of 4421005 in words is "four million, four hundred twenty-one thousand, five".