11988789 has 8 divisors (see below), whose sum is σ = 16030080. Its totient is φ = 7970016.

The previous prime is 11988751. The next prime is 11988799. The reversal of 11988789 is 98788911.

11988789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11988789 - 2⁸ = 11988533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11988719) 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, 4344 + ... + 6545.

It is an arithmetic number, because the mean of its divisors is an integer number (2003760).

Almost surely, 2^11988789 is an apocalyptic number.

It is an amenable number.

11988789 is a deficient number, since it is larger than the sum of its proper divisors (4041291).

11988789 is a wasteful number, since it uses less digits than its factorization.

11988789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11259.

The product of its digits is 290304, while the sum is 51.

The square root of 11988789 is about 3462.4830685507. The cubic root of 11988789 is about 228.8715296774.

The spelling of 11988789 in words is "eleven million, nine hundred eighty-eight thousand, seven hundred eighty-nine".