648000939 has 16 divisors (see below), whose sum is σ = 870658560. Its totient is φ = 428685600.

The previous prime is 648000937. The next prime is 648000971. The reversal of 648000939 is 939000846.

It is not a de Polignac number, because 648000939 - 2¹ = 648000937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 648000897 and 648000906.

It is not an unprimeable number, because it can be changed into a prime (648000931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225864 + ... + 228714.

It is an arithmetic number, because the mean of its divisors is an integer number (54416160).

Almost surely, 2^648000939 is an apocalyptic number.

648000939 is a deficient number, since it is larger than the sum of its proper divisors (222657621).

648000939 is a wasteful number, since it uses less digits than its factorization.

648000939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 648000939 is about 25455.8625664109. The cubic root of 648000939 is about 865.3501601695.

The spelling of 648000939 in words is "six hundred forty-eight million, nine hundred thirty-nine", and thus it is an aban number.