12000789 has 12 divisors (see below), whose sum is σ = 17462796. Its totient is φ = 7941312.

The previous prime is 12000773. The next prime is 12000797. The reversal of 12000789 is 98700021.

It can be written as a sum of positive squares in 2 ways, for example, as 8910225 + 3090564 = 2985^2 + 1758^2 .

It is not a de Polignac number, because 12000789 - 2⁴ = 12000773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3634 + ... + 6099.

It is an arithmetic number, because the mean of its divisors is an integer number (1455233).

Almost surely, 2^12000789 is an apocalyptic number.

It is an amenable number.

12000789 is a deficient number, since it is larger than the sum of its proper divisors (5462007).

12000789 is a wasteful number, since it uses less digits than its factorization.

12000789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9876 (or 9873 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 12000789 is about 3464.2154956065. The cubic root of 12000789 is about 228.9478660648.

The spelling of 12000789 in words is "twelve million, seven hundred eighty-nine", and thus it is an aban number.