648484799 has 2 divisors, whose sum is σ = 648484800. Its totient is φ = 648484798.

The previous prime is 648484789. The next prime is 648484841. The reversal of 648484799 is 997484846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 648484799 - 2⁴ = 648484783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648484729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324242399 + 324242400.

It is an arithmetic number, because the mean of its divisors is an integer number (324242400).

Almost surely, 2^648484799 is an apocalyptic number.

648484799 is a deficient number, since it is larger than the sum of its proper divisors (1).

648484799 is an equidigital number, since it uses as much as digits as its factorization.

648484799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13934592, while the sum is 59.

The square root of 648484799 is about 25465.3646940310. The cubic root of 648484799 is about 865.5654912133.

The spelling of 648484799 in words is "six hundred forty-eight million, four hundred eighty-four thousand, seven hundred ninety-nine".