648848287 has 2 divisors, whose sum is σ = 648848288. Its totient is φ = 648848286.

The previous prime is 648848281. The next prime is 648848323. The reversal of 648848287 is 782848846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 648848287 - 2³ = 648848279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648848281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324424143 + 324424144.

It is an arithmetic number, because the mean of its divisors is an integer number (324424144).

Almost surely, 2^648848287 is an apocalyptic number.

648848287 is a deficient number, since it is larger than the sum of its proper divisors (1).

648848287 is an equidigital number, since it uses as much as digits as its factorization.

648848287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5505024, while the sum is 55.

The square root of 648848287 is about 25472.5006035921. The cubic root of 648848287 is about 865.7271829518.

The spelling of 648848287 in words is "six hundred forty-eight million, eight hundred forty-eight thousand, two hundred eighty-seven".