648737008 has 20 divisors (see below), whose sum is σ = 1257886008. Its totient is φ = 324121280.

The previous prime is 648736997. The next prime is 648737027. The reversal of 648737008 is 800737846.

648737008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7203 + ... + 36733.

Almost surely, 2^648737008 is an apocalyptic number.

It is an amenable number.

648737008 is a deficient number, since it is larger than the sum of its proper divisors (609149000).

648737008 is a wasteful number, since it uses less digits than its factorization.

648737008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30912 (or 30906 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 648737008 is about 25470.3162131922. The cubic root of 648737008 is about 865.6776887095.

The spelling of 648737008 in words is "six hundred forty-eight million, seven hundred thirty-seven thousand, eight".