12008881 has 2 divisors, whose sum is σ = 12008882. Its totient is φ = 12008880.

The previous prime is 12008863. The next prime is 12008897. The reversal of 12008881 is 18880021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11696400 + 312481 = 3420^2 + 559^2 .

It is an emirp because it is prime and its reverse (18880021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12008881 - 2¹⁵ = 11976113 is a prime.

It is a super-2 number, since 2×12008881² = 288426445744322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12008861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004440 + 6004441.

It is an arithmetic number, because the mean of its divisors is an integer number (6004441).

Almost surely, 2^12008881 is an apocalyptic number.

It is an amenable number.

12008881 is a deficient number, since it is larger than the sum of its proper divisors (1).

12008881 is an equidigital number, since it uses as much as digits as its factorization.

12008881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 12008881 is about 3465.3832399895. The cubic root of 12008881 is about 228.9993135122. Note that the first 3 decimals are identical.

The spelling of 12008881 in words is "twelve million, eight thousand, eight hundred eighty-one".