12658879 has 2 divisors, whose sum is σ = 12658880. Its totient is φ = 12658878.

The previous prime is 12658861. The next prime is 12658949. The reversal of 12658879 is 97885621.

12658879 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 (97885621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12658879 - 2¹⁷ = 12527807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12658379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6329439 + 6329440.

It is an arithmetic number, because the mean of its divisors is an integer number (6329440).

Almost surely, 2^12658879 is an apocalyptic number.

12658879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12658879 is an equidigital number, since it uses as much as digits as its factorization.

12658879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 46.

The square root of 12658879 is about 3557.9318430796. The cubic root of 12658879 is about 233.0585729563.

The spelling of 12658879 in words is "twelve million, six hundred fifty-eight thousand, eight hundred seventy-nine".