11985648 has 40 divisors (see below), whose sum is σ = 31688448. Its totient is φ = 3901632.

The previous prime is 11985647. The next prime is 11985667. The reversal of 11985648 is 84658911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11985647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840 + ... + 4967.

Almost surely, 2^11985648 is an apocalyptic number.

It is an amenable number.

11985648 is an abundant number, since it is smaller than the sum of its proper divisors (19702800).

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

11985648 is a wasteful number, since it uses less digits than its factorization.

11985648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861 (or 5855 counting only the distinct ones).

The product of its digits is 69120, while the sum is 42.

The square root of 11985648 is about 3462.0294626129. The cubic root of 11985648 is about 228.8515402171.

The spelling of 11985648 in words is "eleven million, nine hundred eighty-five thousand, six hundred forty-eight".