12008728 has 16 divisors (see below), whose sum is σ = 22667760. Its totient is φ = 5964000.

The previous prime is 12008713. The next prime is 12008729. The reversal of 12008728 is 82780021.

It is a super-3 number, since 3×12008728³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12008696 and 12008705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12008729) 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, 3763 + ... + 6178.

It is an arithmetic number, because the mean of its divisors is an integer number (1416735).

Almost surely, 2^12008728 is an apocalyptic number.

It is an amenable number.

12008728 is a deficient number, since it is larger than the sum of its proper divisors (10659032).

12008728 is a wasteful number, since it uses less digits than its factorization.

12008728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10098 (or 10094 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 12008728 is about 3465.3611644387. The cubic root of 12008728 is about 228.9983409807.

Adding to 12008728 its reverse (82780021), we get a palindrome (94788749).

The spelling of 12008728 in words is "twelve million, eight thousand, seven hundred twenty-eight".