6416447 has 2 divisors, whose sum is σ = 6416448. Its totient is φ = 6416446.

The previous prime is 6416437. The next prime is 6416477. The reversal of 6416447 is 7446146.

6416447 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6416447 - 2⁶ = 6416383 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 (6416437) 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, 3208223 + 3208224.

It is an arithmetic number, because the mean of its divisors is an integer number (3208224).

Almost surely, 2^6416447 is an apocalyptic number.

6416447 is a deficient number, since it is larger than the sum of its proper divisors (1).

6416447 is an equidigital number, since it uses as much as digits as its factorization.

6416447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 6416447 is about 2533.0706662073. The cubic root of 6416447 is about 185.8224594083.

The spelling of 6416447 in words is "six million, four hundred sixteen thousand, four hundred forty-seven".