12327812 has 18 divisors (see below), whose sum is σ = 25096302. Its totient is φ = 5283264.

The previous prime is 12327811. The next prime is 12327817. The reversal of 12327812 is 21872321.

It can be written as a sum of positive squares in only one way, i.e., 11195716 + 1132096 = 3346^2 + 1064^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12327811) 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 5 ways as a sum of consecutive naturals, for example, 31253 + ... + 31644.

It is an arithmetic number, because the mean of its divisors is an integer number (1394239).

Almost surely, 2^12327812 is an apocalyptic number.

It is an amenable number.

12327812 is an abundant number, since it is smaller than the sum of its proper divisors (12768490).

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

12327812 is a wasteful number, since it uses less digits than its factorization.

12327812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62915 (or 62906 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 12327812 is about 3511.0984036338. The cubic root of 12327812 is about 231.0088763042.

The spelling of 12327812 in words is "twelve million, three hundred twenty-seven thousand, eight hundred twelve".