6488609 has 2 divisors, whose sum is σ = 6488610. Its totient is φ = 6488608.

The previous prime is 6488591. The next prime is 6488617. The reversal of 6488609 is 9068846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3598609 + 2890000 = 1897^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 6488609 - 2⁸ = 6488353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6488639) 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, 3244304 + 3244305.

It is an arithmetic number, because the mean of its divisors is an integer number (3244305).

Almost surely, 2^6488609 is an apocalyptic number.

It is an amenable number.

6488609 is a deficient number, since it is larger than the sum of its proper divisors (1).

6488609 is an equidigital number, since it uses as much as digits as its factorization.

6488609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 6488609 is about 2547.2748183107. The cubic root of 6488609 is about 186.5164760581.

The spelling of 6488609 in words is "six million, four hundred eighty-eight thousand, six hundred nine".