648005316 has 24 divisors (see below), whose sum is σ = 1728014400. Its totient is φ = 185144352.

The previous prime is 648005273. The next prime is 648005333. The reversal of 648005316 is 613500846.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3857091 + ... + 3857258.

It is an arithmetic number, because the mean of its divisors is an integer number (72000600).

Almost surely, 2^648005316 is an apocalyptic number.

It is an amenable number.

648005316 is an abundant number, since it is smaller than the sum of its proper divisors (1080009084).

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

648005316 is a wasteful number, since it uses less digits than its factorization.

648005316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7714363 (or 7714361 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 648005316 is about 25455.9485386029. The cubic root of 648005316 is about 865.3521085356.

The spelling of 648005316 in words is "six hundred forty-eight million, five thousand, three hundred sixteen".