4223321 has 4 divisors (see below), whose sum is σ = 4227492. Its totient is φ = 4219152.

The previous prime is 4223311. The next prime is 4223333. The reversal of 4223321 is 1233224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3097600 + 1125721 = 1760^2 + 1061^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223321 - 2⁶ = 4223257 is a prime.

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 4223321.

It is not an unprimeable number, because it can be changed into a prime (4223311) 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, 515 + ... + 2951.

It is an arithmetic number, because the mean of its divisors is an integer number (1056873).

Almost surely, 2^4223321 is an apocalyptic number.

It is an amenable number.

4223321 is a deficient number, since it is larger than the sum of its proper divisors (4171).

4223321 is a wasteful number, since it uses less digits than its factorization.

4223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170.

The product of its digits is 288, while the sum is 17.

The square root of 4223321 is about 2055.0720182028. The cubic root of 4223321 is about 161.6409387383.

Adding to 4223321 its reverse (1233224), we get a palindrome (5456545).

The spelling of 4223321 in words is "four million, two hundred twenty-three thousand, three hundred twenty-one".