648547312 has 40 divisors (see below), whose sum is σ = 1446435200. Its totient is φ = 275942592.

The previous prime is 648547301. The next prime is 648547321. The reversal of 648547312 is 213745846.

It is a super-3 number, since 3×648547312³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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, 5262 + ... + 36397.

It is an arithmetic number, because the mean of its divisors is an integer number (36160880).

Almost surely, 2^648547312 is an apocalyptic number.

It is an amenable number.

648547312 is an abundant number, since it is smaller than the sum of its proper divisors (797887888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648547312 is a wasteful number, since it uses less digits than its factorization.

648547312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41813 (or 41807 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 648547312 is about 25466.5920766796. The cubic root of 648547312 is about 865.5933034083.

The spelling of 648547312 in words is "six hundred forty-eight million, five hundred forty-seven thousand, three hundred twelve".