648795733 has 2 divisors, whose sum is σ = 648795734. Its totient is φ = 648795732.

The previous prime is 648795691. The next prime is 648795809. The reversal of 648795733 is 337597846.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 546016689 + 102779044 = 23367^2 + 10138^2 .

It is a cyclic number.

It is not a de Polignac number, because 648795733 - 2¹⁷ = 648664661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648795233) 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, 324397866 + 324397867.

It is an arithmetic number, because the mean of its divisors is an integer number (324397867).

Almost surely, 2^648795733 is an apocalyptic number.

It is an amenable number.

648795733 is a deficient number, since it is larger than the sum of its proper divisors (1).

648795733 is an equidigital number, since it uses as much as digits as its factorization.

648795733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 52.

The square root of 648795733 is about 25471.4689996474. The cubic root of 648795733 is about 865.7038088926.

The spelling of 648795733 in words is "six hundred forty-eight million, seven hundred ninety-five thousand, seven hundred thirty-three".