6409747 has 2 divisors, whose sum is σ = 6409748. Its totient is φ = 6409746.

The previous prime is 6409721. The next prime is 6409751. The reversal of 6409747 is 7479046.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6409747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6409757) 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 as a sum of consecutive naturals, namely, 3204873 + 3204874.

It is an arithmetic number, because the mean of its divisors is an integer number (3204874).

Almost surely, 2^6409747 is an apocalyptic number.

6409747 is a deficient number, since it is larger than the sum of its proper divisors (1).

6409747 is an equidigital number, since it uses as much as digits as its factorization.

6409747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 6409747 is about 2531.7478152454. The cubic root of 6409747 is about 185.7577587999.

The spelling of 6409747 in words is "six million, four hundred nine thousand, seven hundred forty-seven".