12870779 has 2 divisors, whose sum is σ = 12870780. Its totient is φ = 12870778.

The previous prime is 12870773. The next prime is 12870799. The reversal of 12870779 is 97707821.

12870779 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 a cyclic number.

It is not a de Polignac number, because 12870779 - 2⁴ = 12870763 is a prime.

It is not a weakly prime, because it can be changed into another prime (12870773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6435389 + 6435390.

It is an arithmetic number, because the mean of its divisors is an integer number (6435390).

Almost surely, 2^12870779 is an apocalyptic number.

12870779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12870779 is an equidigital number, since it uses as much as digits as its factorization.

12870779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 12870779 is about 3587.5867933752. The cubic root of 12870779 is about 234.3517914560.

It can be divided in two parts, 128 and 70779, that added together give a palindrome (70907).

The spelling of 12870779 in words is "twelve million, eight hundred seventy thousand, seven hundred seventy-nine".