12742679 has 2 divisors, whose sum is σ = 12742680. Its totient is φ = 12742678.

The previous prime is 12742651. The next prime is 12742693. The reversal of 12742679 is 97624721.

It is a strong prime.

It is an emirp because it is prime and its reverse (97624721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12742679 - 2⁸ = 12742423 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12742699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6371339 + 6371340.

It is an arithmetic number, because the mean of its divisors is an integer number (6371340).

Almost surely, 2^12742679 is an apocalyptic number.

12742679 is a deficient number, since it is larger than the sum of its proper divisors (1).

12742679 is an equidigital number, since it uses as much as digits as its factorization.

12742679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 12742679 is about 3569.6889220211. The cubic root of 12742679 is about 233.5717139763.

The spelling of 12742679 in words is "twelve million, seven hundred forty-two thousand, six hundred seventy-nine".