12789039 has 4 divisors (see below), whose sum is σ = 17052056. Its totient is φ = 8526024.

The previous prime is 12789037. The next prime is 12789047. The reversal of 12789039 is 93098721.

12789039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93098721 = 3 ⋅31032907.

It is not a de Polignac number, because 12789039 - 2¹ = 12789037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12788988 and 12789006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12789031) 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, 2131504 + ... + 2131509.

It is an arithmetic number, because the mean of its divisors is an integer number (4263014).

Almost surely, 2^12789039 is an apocalyptic number.

12789039 is a deficient number, since it is larger than the sum of its proper divisors (4263017).

12789039 is an equidigital number, since it uses as much as digits as its factorization.

12789039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263016.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 12789039 is about 3576.1765895996. The cubic root of 12789039 is about 233.8546288252.

The spelling of 12789039 in words is "twelve million, seven hundred eighty-nine thousand, thirty-nine".