4428565 has 4 divisors (see below), whose sum is σ = 5314284. Its totient is φ = 3542848.

The previous prime is 4428559. The next prime is 4428587. The reversal of 4428565 is 5658244.

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 3189796 + 1238769 = 1786^2 + 1113^2 .

It is a cyclic number.

It is not a de Polignac number, because 4428565 - 2¹¹ = 4426517 is a prime.

It is a super-2 number, since 2×4428565² = 39224375918450, which contains 22 as substring.

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 4428565.

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, 442852 + ... + 442861.

It is an arithmetic number, because the mean of its divisors is an integer number (1328571).

Almost surely, 2^4428565 is an apocalyptic number.

It is an amenable number.

4428565 is a deficient number, since it is larger than the sum of its proper divisors (885719).

4428565 is an equidigital number, since it uses as much as digits as its factorization.

4428565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885718.

The product of its digits is 38400, while the sum is 34.

The square root of 4428565 is about 2104.4155958365. The cubic root of 4428565 is about 164.2180942346.

The spelling of 4428565 in words is "four million, four hundred twenty-eight thousand, five hundred sixty-five".