12875789 has 2 divisors, whose sum is σ = 12875790. Its totient is φ = 12875788.

The previous prime is 12875777. The next prime is 12875803. The reversal of 12875789 is 98757821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11628100 + 1247689 = 3410^2 + 1117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12875789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12875689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6437894 + 6437895.

It is an arithmetic number, because the mean of its divisors is an integer number (6437895).

Almost surely, 2^12875789 is an apocalyptic number.

It is an amenable number.

12875789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12875789 is an equidigital number, since it uses as much as digits as its factorization.

12875789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 47.

The square root of 12875789 is about 3588.2849663871. The cubic root of 12875789 is about 234.3821949554.

The spelling of 12875789 in words is "twelve million, eight hundred seventy-five thousand, seven hundred eighty-nine".