12683779 has 2 divisors, whose sum is σ = 12683780. Its totient is φ = 12683778.

The previous prime is 12683689. The next prime is 12683789. The reversal of 12683779 is 97738621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12683779 - 2⁷ = 12683651 is a prime.

It is not a weakly prime, because it can be changed into another prime (12683789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6341889 + 6341890.

It is an arithmetic number, because the mean of its divisors is an integer number (6341890).

Almost surely, 2^12683779 is an apocalyptic number.

12683779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12683779 is an equidigital number, since it uses as much as digits as its factorization.

12683779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 12683779 is about 3561.4293478883. The cubic root of 12683779 is about 233.2112815198.

The spelling of 12683779 in words is "twelve million, six hundred eighty-three thousand, seven hundred seventy-nine".