11968728 has 32 divisors (see below), whose sum is σ = 30888960. Its totient is φ = 3860640.

The previous prime is 11968721. The next prime is 11968729. The reversal of 11968728 is 82786911.

It is a self number, because there is not a number n which added to its sum of digits gives 11968728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11968721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7300 + ... + 8787.

It is an arithmetic number, because the mean of its divisors is an integer number (965280).

Almost surely, 2^11968728 is an apocalyptic number.

It is an amenable number.

11968728 is an abundant number, since it is smaller than the sum of its proper divisors (18920232).

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

11968728 is a wasteful number, since it uses less digits than its factorization.

11968728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16127 (or 16123 counting only the distinct ones).

The product of its digits is 48384, while the sum is 42.

The square root of 11968728 is about 3459.5849462038. The cubic root of 11968728 is about 228.7438004829.

The spelling of 11968728 in words is "eleven million, nine hundred sixty-eight thousand, seven hundred twenty-eight".