4323221 has 12 divisors (see below), whose sum is σ = 5094432. Its totient is φ = 3657528.

The previous prime is 4323217. The next prime is 4323239. The reversal of 4323221 is 1223234.

It is not a de Polignac number, because 4323221 - 2² = 4323217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4323221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4323251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3536 + ... + 4598.

It is an arithmetic number, because the mean of its divisors is an integer number (424536).

Almost surely, 2^4323221 is an apocalyptic number.

It is an amenable number.

4323221 is a deficient number, since it is larger than the sum of its proper divisors (771211).

4323221 is a wasteful number, since it uses less digits than its factorization.

4323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160 (or 1153 counting only the distinct ones).

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

The square root of 4323221 is about 2079.2356768774. The cubic root of 4323221 is about 162.9055244359.

Adding to 4323221 its reverse (1223234), we get a palindrome (5546455).

The spelling of 4323221 in words is "four million, three hundred twenty-three thousand, two hundred twenty-one".