648750979 has 2 divisors, whose sum is σ = 648750980. Its totient is φ = 648750978.

The previous prime is 648750941. The next prime is 648751027. The reversal of 648750979 is 979057846.

648750979 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 648750979 - 2⁹ = 648750467 is a prime.

It is not a weakly prime, because it can be changed into another prime (648760979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324375489 + 324375490.

It is an arithmetic number, because the mean of its divisors is an integer number (324375490).

Almost surely, 2^648750979 is an apocalyptic number.

648750979 is a deficient number, since it is larger than the sum of its proper divisors (1).

648750979 is an equidigital number, since it uses as much as digits as its factorization.

648750979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 648750979 is about 25470.5904721504. The cubic root of 648750979 is about 865.6839029874.

The spelling of 648750979 in words is "six hundred forty-eight million, seven hundred fifty thousand, nine hundred seventy-nine".