6447113 has 2 divisors, whose sum is σ = 6447114. Its totient is φ = 6447112.

The previous prime is 6447109. The next prime is 6447121. The reversal of 6447113 is 3117446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5968249 + 478864 = 2443^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 6447113 - 2² = 6447109 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6447173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3223556 + 3223557.

It is an arithmetic number, because the mean of its divisors is an integer number (3223557).

Almost surely, 2^6447113 is an apocalyptic number.

It is an amenable number.

6447113 is a deficient number, since it is larger than the sum of its proper divisors (1).

6447113 is an equidigital number, since it uses as much as digits as its factorization.

6447113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 6447113 is about 2539.1165786549. The cubic root of 6447113 is about 186.1180216009.

The spelling of 6447113 in words is "six million, four hundred forty-seven thousand, one hundred thirteen".