12010989 has 4 divisors (see below), whose sum is σ = 16014656. Its totient is φ = 8007324.

The previous prime is 12010963. The next prime is 12011009. The reversal of 12010989 is 98901021.

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 not a de Polignac number, because 12010989 - 2⁷ = 12010861 is a prime.

It is a Duffinian number.

12010989 is a modest number, since divided by 10989 gives 12 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010189) 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, 2001829 + ... + 2001834.

It is an arithmetic number, because the mean of its divisors is an integer number (4003664).

Almost surely, 2^12010989 is an apocalyptic number.

It is an amenable number.

12010989 is a deficient number, since it is larger than the sum of its proper divisors (4003667).

12010989 is an equidigital number, since it uses as much as digits as its factorization.

12010989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003666.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 12010989 is about 3465.6873777073. The cubic root of 12010989 is about 229.0127119937.

The spelling of 12010989 in words is "twelve million, ten thousand, nine hundred eighty-nine".