648282647 has 2 divisors, whose sum is σ = 648282648. Its totient is φ = 648282646.

The previous prime is 648282643. The next prime is 648282659. The reversal of 648282647 is 746282846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 648282647 - 2² = 648282643 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 (648282643) 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, 324141323 + 324141324.

It is an arithmetic number, because the mean of its divisors is an integer number (324141324).

Almost surely, 2^648282647 is an apocalyptic number.

648282647 is a deficient number, since it is larger than the sum of its proper divisors (1).

648282647 is an equidigital number, since it uses as much as digits as its factorization.

648282647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1032192, while the sum is 47.

The square root of 648282647 is about 25461.3952288558. The cubic root of 648282647 is about 865.4755410298.

The spelling of 648282647 in words is "six hundred forty-eight million, two hundred eighty-two thousand, six hundred forty-seven".