12728108 has 12 divisors (see below), whose sum is σ = 23242800. Its totient is φ = 6087312.

The previous prime is 12728083. The next prime is 12728113. The reversal of 12728108 is 80182721.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 69083 + ... + 69266.

It is an arithmetic number, because the mean of its divisors is an integer number (1936900).

Almost surely, 2^12728108 is an apocalyptic number.

It is an amenable number.

12728108 is a deficient number, since it is larger than the sum of its proper divisors (10514692).

12728108 is a wasteful number, since it uses less digits than its factorization.

12728108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138376 (or 138374 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 12728108 is about 3567.6474041026. The cubic root of 12728108 is about 233.4826518176.

The spelling of 12728108 in words is "twelve million, seven hundred twenty-eight thousand, one hundred eight".