648586963 has 2 divisors, whose sum is σ = 648586964. Its totient is φ = 648586962.

The previous prime is 648586933. The next prime is 648586973. The reversal of 648586963 is 369685846.

It is a happy number.

648586963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648586963 is a prime.

It is not a weakly prime, because it can be changed into another prime (648586903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324293481 + 324293482.

It is an arithmetic number, because the mean of its divisors is an integer number (324293482).

Almost surely, 2^648586963 is an apocalyptic number.

648586963 is a deficient number, since it is larger than the sum of its proper divisors (1).

648586963 is an equidigital number, since it uses as much as digits as its factorization.

648586963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 55.

The square root of 648586963 is about 25467.3705552811. The cubic root of 648586963 is about 865.6109433142.

The spelling of 648586963 in words is "six hundred forty-eight million, five hundred eighty-six thousand, nine hundred sixty-three".