6221443 has 4 divisors (see below), whose sum is σ = 6254208. Its totient is φ = 6188680.

The previous prime is 6221429. The next prime is 6221459. The reversal of 6221443 is 3441226.

It is a happy number.

6221443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3441226 = 2 ⋅1720613.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6221443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6221543) 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, 16096 + ... + 16477.

It is an arithmetic number, because the mean of its divisors is an integer number (1563552).

Almost surely, 2^6221443 is an apocalyptic number.

6221443 is a deficient number, since it is larger than the sum of its proper divisors (32765).

6221443 is a wasteful number, since it uses less digits than its factorization.

6221443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32764.

The product of its digits is 1152, while the sum is 22.

The square root of 6221443 is about 2494.2820610348. The cubic root of 6221443 is about 183.9206001941.

Adding to 6221443 its reverse (3441226), we get a palindrome (9662669).

The spelling of 6221443 in words is "six million, two hundred twenty-one thousand, four hundred forty-three".