12782071 has 2 divisors, whose sum is σ = 12782072. Its totient is φ = 12782070.

The previous prime is 12782053. The next prime is 12782087. The reversal of 12782071 is 17028721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12782071 - 2¹³ = 12773879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12722071) 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, 6391035 + 6391036.

It is an arithmetic number, because the mean of its divisors is an integer number (6391036).

Almost surely, 2^12782071 is an apocalyptic number.

12782071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12782071 is an equidigital number, since it uses as much as digits as its factorization.

12782071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 12782071 is about 3575.2022320423. The cubic root of 12782071 is about 233.8121498690.

The spelling of 12782071 in words is "twelve million, seven hundred eighty-two thousand, seventy-one".