9918648 has 48 divisors (see below), whose sum is σ = 27008280. Its totient is φ = 3288384.

The previous prime is 9918647. The next prime is 9918683. The reversal of 9918648 is 8468199.

9918648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9918641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24786 + ... + 25182.

Almost surely, 2^9918648 is an apocalyptic number.

It is an amenable number.

9918648 is an abundant number, since it is smaller than the sum of its proper divisors (17089632).

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

9918648 is a wasteful number, since it uses less digits than its factorization.

9918648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 749 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 9918648 is about 3149.3885120766. The cubic root of 9918648 is about 214.8576523046.

The spelling of 9918648 in words is "nine million, nine hundred eighteen thousand, six hundred forty-eight".