4221303 has 4 divisors (see below), whose sum is σ = 5628408. Its totient is φ = 2814200.

The previous prime is 4221299. The next prime is 4221307. The reversal of 4221303 is 3031224.

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

It is an interprime number because it is at equal distance from previous prime (4221299) and next prime (4221307).

It is a cyclic number.

It is not a de Polignac number, because 4221303 - 2² = 4221299 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703548 + ... + 703553.

It is an arithmetic number, because the mean of its divisors is an integer number (1407102).

Almost surely, 2^4221303 is an apocalyptic number.

4221303 is a deficient number, since it is larger than the sum of its proper divisors (1407105).

4221303 is a wasteful number, since it uses less digits than its factorization.

4221303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407104.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 4221303 is about 2054.5809791780. The cubic root of 4221303 is about 161.6151893828.

Adding to 4221303 its reverse (3031224), we get a palindrome (7252527).

The spelling of 4221303 in words is "four million, two hundred twenty-one thousand, three hundred three".