12823787 has 2 divisors, whose sum is σ = 12823788. Its totient is φ = 12823786.

The previous prime is 12823781. The next prime is 12823799. The reversal of 12823787 is 78732821.

12823787 is digitally balanced in base 3, 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 (78732821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12823787 - 2¹⁰ = 12822763 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12823787.

It is not a weakly prime, because it can be changed into another prime (12823781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6411893 + 6411894.

It is an arithmetic number, because the mean of its divisors is an integer number (6411894).

Almost surely, 2^12823787 is an apocalyptic number.

12823787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12823787 is an equidigital number, since it uses as much as digits as its factorization.

12823787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

The square root of 12823787 is about 3581.0315552924. The cubic root of 12823787 is about 234.0662327428.

The spelling of 12823787 in words is "twelve million, eight hundred twenty-three thousand, seven hundred eighty-seven".