12789773 has 2 divisors, whose sum is σ = 12789774. Its totient is φ = 12789772.

The previous prime is 12789769. The next prime is 12789811. The reversal of 12789773 is 37798721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12376324 + 413449 = 3518^2 + 643^2 .

It is an emirp because it is prime and its reverse (37798721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12789773 - 2² = 12789769 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12789703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6394886 + 6394887.

It is an arithmetic number, because the mean of its divisors is an integer number (6394887).

Almost surely, 2^12789773 is an apocalyptic number.

It is an amenable number.

12789773 is a deficient number, since it is larger than the sum of its proper divisors (1).

12789773 is an equidigital number, since it uses as much as digits as its factorization.

12789773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 44.

The square root of 12789773 is about 3576.2792116947. The cubic root of 12789773 is about 233.8591026045.

The spelling of 12789773 in words is "twelve million, seven hundred eighty-nine thousand, seven hundred seventy-three".