12876779 has 2 divisors, whose sum is σ = 12876780. Its totient is φ = 12876778.

The previous prime is 12876739. The next prime is 12876781. The reversal of 12876779 is 97767821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12876779 - 2¹² = 12872683 is a prime.

It is a super-2 number, since 2×12876779² = 331622874829682, which contains 22 as substring.

Together with 12876781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12876709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6438389 + 6438390.

It is an arithmetic number, because the mean of its divisors is an integer number (6438390).

Almost surely, 2^12876779 is an apocalyptic number.

12876779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12876779 is an equidigital number, since it uses as much as digits as its factorization.

12876779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 47.

The square root of 12876779 is about 3588.4229126456. The cubic root of 12876779 is about 234.3882018993.

The spelling of 12876779 in words is "twelve million, eight hundred seventy-six thousand, seven hundred seventy-nine".