12795779 has 2 divisors, whose sum is σ = 12795780. Its totient is φ = 12795778.

The previous prime is 12795767. The next prime is 12795799. The reversal of 12795779 is 97759721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12795779 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (12795799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6397889 + 6397890.

It is an arithmetic number, because the mean of its divisors is an integer number (6397890).

Almost surely, 2^12795779 is an apocalyptic number.

12795779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12795779 is an equidigital number, since it uses as much as digits as its factorization.

12795779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 277830, while the sum is 47.

The square root of 12795779 is about 3577.1188126759. The cubic root of 12795779 is about 233.8957031491.

The spelling of 12795779 in words is "twelve million, seven hundred ninety-five thousand, seven hundred seventy-nine".