4428003 has 4 divisors (see below), whose sum is σ = 5904008. Its totient is φ = 2952000.

The previous prime is 4428001. The next prime is 4428013. The reversal of 4428003 is 3008244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4428003 - 2¹ = 4428001 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4428001) 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, 737998 + ... + 738003.

It is an arithmetic number, because the mean of its divisors is an integer number (1476002).

Almost surely, 2^4428003 is an apocalyptic number.

4428003 is a deficient number, since it is larger than the sum of its proper divisors (1476005).

4428003 is a wasteful number, since it uses less digits than its factorization.

4428003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476004.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4428003 is about 2104.2820628423. The cubic root of 4428003 is about 164.2111473287.

The spelling of 4428003 in words is "four million, four hundred twenty-eight thousand, three".