648750996 has 72 divisors (see below), whose sum is σ = 1712310600. Its totient is φ = 206841600.

The previous prime is 648750979. The next prime is 648751027. The reversal of 648750996 is 699057846.

648750996 is a `hidden beast` number, since 6 + 48 + 7 + 509 + 96 = 666.

648750996 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 4 ways, for example, as 268500996 + 380250000 = 16386^2 + 19500^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110946 + ... + 116646.

Almost surely, 2^648750996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648750996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856155300).

648750996 is an abundant number, since it is smaller than the sum of its proper divisors (1063559604).

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

648750996 is a wasteful number, since it uses less digits than its factorization.

648750996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849 (or 5844 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 648750996 is about 25470.5908058686. The cubic root of 648750996 is about 865.6839105489.

The spelling of 648750996 in words is "six hundred forty-eight million, seven hundred fifty thousand, nine hundred ninety-six".