5443221 has 8 divisors (see below), whose sum is σ = 8294464. Its totient is φ = 3110400.

The previous prime is 5443219. The next prime is 5443231. The reversal of 5443221 is 1223445.

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

It is not a de Polignac number, because 5443221 - 2¹ = 5443219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 259201 = 5443221 / (5 + 4 + 4 + 3 + 2 + 2 + 1).

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5443231) 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, 129580 + ... + 129621.

It is an arithmetic number, because the mean of its divisors is an integer number (1036808).

Almost surely, 2^5443221 is an apocalyptic number.

It is an amenable number.

5443221 is a deficient number, since it is larger than the sum of its proper divisors (2851243).

5443221 is a wasteful number, since it uses less digits than its factorization.

5443221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259211.

The product of its digits is 960, while the sum is 21.

The square root of 5443221 is about 2333.0711519369. The cubic root of 5443221 is about 175.9078912838.

Adding to 5443221 its reverse (1223445), we get a palindrome (6666666).

The spelling of 5443221 in words is "five million, four hundred forty-three thousand, two hundred twenty-one".