648889583 has 2 divisors, whose sum is σ = 648889584. Its totient is φ = 648889582.

The previous prime is 648889537. The next prime is 648889589. The reversal of 648889583 is 385988846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 648889583 - 2²⁸ = 380454127 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 (648889589) 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, 324444791 + 324444792.

It is an arithmetic number, because the mean of its divisors is an integer number (324444792).

Almost surely, 2^648889583 is an apocalyptic number.

648889583 is a deficient number, since it is larger than the sum of its proper divisors (1).

648889583 is an equidigital number, since it uses as much as digits as its factorization.

648889583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13271040, while the sum is 59.

The square root of 648889583 is about 25473.3111903419. The cubic root of 648889583 is about 865.7455489869.

The spelling of 648889583 in words is "six hundred forty-eight million, eight hundred eighty-nine thousand, five hundred eighty-three".