12000089 has 4 divisors (see below), whose sum is σ = 12521856. Its totient is φ = 11478324.

The previous prime is 12000073. The next prime is 12000091. The reversal of 12000089 is 98000021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12000089 - 2⁴ = 12000073 is a prime.

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 12000089.

It is not an unprimeable number, because it can be changed into a prime (12000029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260849 + ... + 260894.

It is an arithmetic number, because the mean of its divisors is an integer number (3130464).

Almost surely, 2^12000089 is an apocalyptic number.

It is an amenable number.

12000089 is a deficient number, since it is larger than the sum of its proper divisors (521767).

12000089 is an equidigital number, since it uses as much as digits as its factorization.

12000089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521766.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12000089 is about 3464.1144611574. The cubic root of 12000089 is about 228.9434145069.

The spelling of 12000089 in words is "twelve million, eighty-nine", and thus it is an aban number and an uban number.