648702008 has 32 divisors (see below), whose sum is σ = 1236008160. Its totient is φ = 319119360.

The previous prime is 648702007. The next prime is 648702023. The reversal of 648702008 is 800207846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648702007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381416 + ... + 383112.

It is an arithmetic number, because the mean of its divisors is an integer number (38625255).

Almost surely, 2^648702008 is an apocalyptic number.

It is an amenable number.

648702008 is a deficient number, since it is larger than the sum of its proper divisors (587306152).

648702008 is a wasteful number, since it uses less digits than its factorization.

648702008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447 (or 2443 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 648702008 is about 25469.6291296124. The cubic root of 648702008 is about 865.6621203751.

The spelling of 648702008 in words is "six hundred forty-eight million, seven hundred two thousand, eight".