12116728 has 16 divisors (see below), whose sum is σ = 24466680. Its totient is φ = 5592288.

The previous prime is 12116719. The next prime is 12116729. The reversal of 12116728 is 82761121.

It is a junction number, because it is equal to n+sod(n) for n = 12116696 and 12116705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12116729) 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 3 ways as a sum of consecutive naturals, for example, 58150 + ... + 58357.

Almost surely, 2^12116728 is an apocalyptic number.

It is an amenable number.

12116728 is an abundant number, since it is smaller than the sum of its proper divisors (12349952).

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

12116728 is a wasteful number, since it uses less digits than its factorization.

12116728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116526 (or 116522 counting only the distinct ones).

The product of its digits is 1344, while the sum is 28.

The square root of 12116728 is about 3480.9090766637. The cubic root of 12116728 is about 229.6827889234.

Adding to 12116728 its reverse (82761121), we get a palindrome (94877849).

The spelling of 12116728 in words is "twelve million, one hundred sixteen thousand, seven hundred twenty-eight".