6444413 has 2 divisors, whose sum is σ = 6444414. Its totient is φ = 6444412.

The previous prime is 6444391. The next prime is 6444437. The reversal of 6444413 is 3144446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6160324 + 284089 = 2482^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 6444413 - 2¹⁰ = 6443389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6444443) 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 as a sum of consecutive naturals, namely, 3222206 + 3222207.

It is an arithmetic number, because the mean of its divisors is an integer number (3222207).

Almost surely, 2^6444413 is an apocalyptic number.

It is an amenable number.

6444413 is a deficient number, since it is larger than the sum of its proper divisors (1).

6444413 is an equidigital number, since it uses as much as digits as its factorization.

6444413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 6444413 is about 2538.5848419937. The cubic root of 6444413 is about 186.0920363874.

Adding to 6444413 its reverse (3144446), we get a palindrome (9588859).

The spelling of 6444413 in words is "six million, four hundred forty-four thousand, four hundred thirteen".