648855423 has 12 divisors (see below), whose sum is σ = 959032360. Its totient is φ = 422510256.

The previous prime is 648855349. The next prime is 648855437. The reversal of 648855423 is 324558846.

It is not a de Polignac number, because 648855423 - 2⁹ = 648854911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648855443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 837928 + ... + 838701.

Almost surely, 2^648855423 is an apocalyptic number.

648855423 is a deficient number, since it is larger than the sum of its proper divisors (310176937).

648855423 is a wasteful number, since it uses less digits than its factorization.

648855423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676678 (or 1676675 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The square root of 648855423 is about 25472.6406758310. The cubic root of 648855423 is about 865.7303566811.

The spelling of 648855423 in words is "six hundred forty-eight million, eight hundred fifty-five thousand, four hundred twenty-three".