648608803 has 4 divisors (see below), whose sum is σ = 686762280. Its totient is φ = 610455328.

The previous prime is 648608801. The next prime is 648608839. The reversal of 648608803 is 308806846.

648608803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308806846 = 2 ⋅154403423.

It is a cyclic number.

It is not a de Polignac number, because 648608803 - 2¹ = 648608801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 648608803.

It is not an unprimeable number, because it can be changed into a prime (648608801) 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, 19076713 + ... + 19076746.

It is an arithmetic number, because the mean of its divisors is an integer number (171690570).

Almost surely, 2^648608803 is an apocalyptic number.

648608803 is a deficient number, since it is larger than the sum of its proper divisors (38153477).

648608803 is a wasteful number, since it uses less digits than its factorization.

648608803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38153476.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 648608803 is about 25467.7993356317. The cubic root of 648608803 is about 865.6206591692.

The spelling of 648608803 in words is "six hundred forty-eight million, six hundred eight thousand, eight hundred three".