648328487 has 2 divisors, whose sum is σ = 648328488. Its totient is φ = 648328486.

The previous prime is 648328463. The next prime is 648328519. The reversal of 648328487 is 784823846.

648328487 is digitally balanced in base 2, 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 648328487 - 2⁶ = 648328423 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 (648322487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324164243 + 324164244.

It is an arithmetic number, because the mean of its divisors is an integer number (324164244).

Almost surely, 2^648328487 is an apocalyptic number.

648328487 is a deficient number, since it is larger than the sum of its proper divisors (1).

648328487 is an equidigital number, since it uses as much as digits as its factorization.

648328487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2064384, while the sum is 50.

The square root of 648328487 is about 25462.2953992762. The cubic root of 648328487 is about 865.4959397781.

The spelling of 648328487 in words is "six hundred forty-eight million, three hundred twenty-eight thousand, four hundred eighty-seven".