648628883 has 4 divisors (see below), whose sum is σ = 741290160. Its totient is φ = 555967608.

The previous prime is 648628867. The next prime is 648628889. The reversal of 648628883 is 388826846.

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

It is not a de Polignac number, because 648628883 - 2⁴ = 648628867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648628889) 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, 46330628 + ... + 46330641.

It is an arithmetic number, because the mean of its divisors is an integer number (185322540).

Almost surely, 2^648628883 is an apocalyptic number.

648628883 is a deficient number, since it is larger than the sum of its proper divisors (92661277).

648628883 is an equidigital number, since it uses as much as digits as its factorization.

648628883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92661276.

The product of its digits is 3538944, while the sum is 53.

The square root of 648628883 is about 25468.1935558846. The cubic root of 648628883 is about 865.6295918692.

The spelling of 648628883 in words is "six hundred forty-eight million, six hundred twenty-eight thousand, eight hundred eighty-three".