6344509 has 2 divisors, whose sum is σ = 6344510. Its totient is φ = 6344508.

The previous prime is 6344473. The next prime is 6344557. The reversal of 6344509 is 9054436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5616900 + 727609 = 2370^2 + 853^2 .

It is a cyclic number.

It is not a de Polignac number, because 6344509 - 2¹¹ = 6342461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6344579) 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, 3172254 + 3172255.

It is an arithmetic number, because the mean of its divisors is an integer number (3172255).

Almost surely, 2^6344509 is an apocalyptic number.

It is an amenable number.

6344509 is a deficient number, since it is larger than the sum of its proper divisors (1).

6344509 is an equidigital number, since it uses as much as digits as its factorization.

6344509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 6344509 is about 2518.8308795947. The cubic root of 6344509 is about 185.1253983034.

The spelling of 6344509 in words is "six million, three hundred forty-four thousand, five hundred nine".