12089881 has 8 divisors (see below), whose sum is σ = 12651264. Its totient is φ = 11531520.

The previous prime is 12089879. The next prime is 12089887. The reversal of 12089881 is 18898021.

12089881 is nontrivially palindromic in base 5.

12089881 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is the 1420-th star number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12089881 - 2¹ = 12089879 is a prime.

It is a super-2 number, since 2×12089881² = 292330445188322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12089881.

It is not an unprimeable number, because it can be changed into a prime (12089887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12816 + ... + 13726.

It is an arithmetic number, because the mean of its divisors is an integer number (1581408).

Almost surely, 2^12089881 is an apocalyptic number.

It is an amenable number.

12089881 is a deficient number, since it is larger than the sum of its proper divisors (561383).

12089881 is an equidigital number, since it uses as much as digits as its factorization.

12089881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511.

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 12089881 is about 3477.0506179807. The cubic root of 12089881 is about 229.5130276462.

The spelling of 12089881 in words is "twelve million, eighty-nine thousand, eight hundred eighty-one".