6344221 has 8 divisors (see below), whose sum is σ = 6854904. Its totient is φ = 5836800.

The previous prime is 6344209. The next prime is 6344227. The reversal of 6344221 is 1224436.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1232100 + 5112121 = 1110^2 + 2261^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6344221 - 2⁵ = 6344189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6344192 and 6344201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6344227) 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, 4605 + ... + 5821.

It is an arithmetic number, because the mean of its divisors is an integer number (856863).

Almost surely, 2^6344221 is an apocalyptic number.

It is an amenable number.

6344221 is a deficient number, since it is larger than the sum of its proper divisors (510683).

6344221 is a wasteful number, since it uses less digits than its factorization.

6344221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

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

The square root of 6344221 is about 2518.7737095658. The cubic root of 6344221 is about 185.1225970926.

Adding to 6344221 its reverse (1224436), we get a palindrome (7568657).

The spelling of 6344221 in words is "six million, three hundred forty-four thousand, two hundred twenty-one".