649786912 has 24 divisors (see below), whose sum is σ = 1280191500. Its totient is φ = 324658944.

The previous prime is 649786873. The next prime is 649787003. The reversal of 649786912 is 219687946.

It is a happy number.

649786912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 636855696 + 12931216 = 25236^2 + 3596^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 649786912.

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, 43014 + ... + 56122.

Almost surely, 2^649786912 is an apocalyptic number.

It is an amenable number.

649786912 is a deficient number, since it is larger than the sum of its proper divisors (630404588).

649786912 is a wasteful number, since it uses less digits than its factorization.

649786912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14668 (or 14660 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The square root of 649786912 is about 25490.9182259094. The cubic root of 649786912 is about 866.1444359394.

The spelling of 649786912 in words is "six hundred forty-nine million, seven hundred eighty-six thousand, nine hundred twelve".