648424383 has 4 divisors (see below), whose sum is σ = 864565848. Its totient is φ = 432282920.

The previous prime is 648424367. The next prime is 648424393. The reversal of 648424383 is 383424846.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 648424383 - 2⁴ = 648424367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648424333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108070728 + ... + 108070733.

It is an arithmetic number, because the mean of its divisors is an integer number (216141462).

Almost surely, 2^648424383 is an apocalyptic number.

648424383 is a deficient number, since it is larger than the sum of its proper divisors (216141465).

648424383 is a wasteful number, since it uses less digits than its factorization.

648424383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216141464.

The product of its digits is 442368, while the sum is 42.

The square root of 648424383 is about 25464.1784277443. The cubic root of 648424383 is about 865.5386102806.

The spelling of 648424383 in words is "six hundred forty-eight million, four hundred twenty-four thousand, three hundred eighty-three".