12782741 has 2 divisors, whose sum is σ = 12782742. Its totient is φ = 12782740.

The previous prime is 12782717. The next prime is 12782761. The reversal of 12782741 is 14728721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12780625 + 2116 = 3575^2 + 46^2 .

It is a cyclic number.

It is not a de Polignac number, because 12782741 - 2¹⁸ = 12520597 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12782698 and 12782707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12782701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6391370 + 6391371.

It is an arithmetic number, because the mean of its divisors is an integer number (6391371).

Almost surely, 2^12782741 is an apocalyptic number.

It is an amenable number.

12782741 is a deficient number, since it is larger than the sum of its proper divisors (1).

12782741 is an equidigital number, since it uses as much as digits as its factorization.

12782741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6272, while the sum is 32.

The square root of 12782741 is about 3575.2959318076. The cubic root of 12782741 is about 233.8162350548.

The spelling of 12782741 in words is "twelve million, seven hundred eighty-two thousand, seven hundred forty-one".