12789047 has 2 divisors, whose sum is σ = 12789048. Its totient is φ = 12789046.

The previous prime is 12789037. The next prime is 12789061. The reversal of 12789047 is 74098721.

12789047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (74098721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12789047 - 2⁴ = 12789031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12789047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12789037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6394523 + 6394524.

It is an arithmetic number, because the mean of its divisors is an integer number (6394524).

Almost surely, 2^12789047 is an apocalyptic number.

12789047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12789047 is an equidigital number, since it uses as much as digits as its factorization.

12789047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 12789047 is about 3576.1777081124. The cubic root of 12789047 is about 233.8546775867.

The spelling of 12789047 in words is "twelve million, seven hundred eighty-nine thousand, forty-seven".