5443343221 has 4 divisors (see below), whose sum is σ = 5444379244. Its totient is φ = 5442307200.

The previous prime is 5443343209. The next prime is 5443343233. The reversal of 5443343221 is 1223433445.

It is a happy number.

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 (5443343209) and next prime (5443343233).

It can be written as a sum of positive squares in 2 ways, for example, as 2402372196 + 3040971025 = 49014^2 + 55145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5443343221 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 (5443343201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510090 + ... + 520651.

It is an arithmetic number, because the mean of its divisors is an integer number (1361094811).

Almost surely, 2^5443343221 is an apocalyptic number.

It is an amenable number.

5443343221 is a deficient number, since it is larger than the sum of its proper divisors (1036023).

5443343221 is a wasteful number, since it uses less digits than its factorization.

5443343221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036022.

The product of its digits is 34560, while the sum is 31.

The square root of 5443343221 is about 73779.0161292491. The cubic root of 5443343221 is about 1759.0920787420.

Adding to 5443343221 its reverse (1223433445), we get a palindrome (6666776666).

The spelling of 5443343221 in words is "five billion, four hundred forty-three million, three hundred forty-three thousand, two hundred twenty-one".