4363221 has 8 divisors (see below), whose sum is σ = 5832640. Its totient is φ = 2901312.

The previous prime is 4363213. The next prime is 4363223. The reversal of 4363221 is 1223634.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4363221 - 2³ = 4363213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4363223) 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 7 ways as a sum of consecutive naturals, for example, 340 + ... + 2973.

It is an arithmetic number, because the mean of its divisors is an integer number (729080).

Almost surely, 2^4363221 is an apocalyptic number.

It is an amenable number.

4363221 is a deficient number, since it is larger than the sum of its proper divisors (1469419).

4363221 is a wasteful number, since it uses less digits than its factorization.

4363221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755.

The product of its digits is 864, while the sum is 21.

The square root of 4363221 is about 2088.8324490011. The cubic root of 4363221 is about 163.4064030506.

Adding to 4363221 its reverse (1223634), we get a palindrome (5586855).

The spelling of 4363221 in words is "four million, three hundred sixty-three thousand, two hundred twenty-one".