11969728 has 14 divisors (see below), whose sum is σ = 23752556. Its totient is φ = 5984832.

The previous prime is 11969723. The next prime is 11969761. The reversal of 11969728 is 82796911.

It is not an unprimeable number, because it can be changed into a prime (11969723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93450 + ... + 93577.

Almost surely, 2^11969728 is an apocalyptic number.

It is an amenable number.

11969728 is a deficient number, since it is larger than the sum of its proper divisors (11782828).

11969728 is an equidigital number, since it uses as much as digits as its factorization.

11969728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187039 (or 187029 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 11969728 is about 3459.7294691926. The cubic root of 11969728 is about 228.7501709018.

The spelling of 11969728 in words is "eleven million, nine hundred sixty-nine thousand, seven hundred twenty-eight".