12740347 has 2 divisors, whose sum is σ = 12740348. Its totient is φ = 12740346.

The previous prime is 12740339. The next prime is 12740353. The reversal of 12740347 is 74304721.

It is a strong prime.

It is an emirp because it is prime and its reverse (74304721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12740347 - 2³ = 12740339 is a prime.

It is not a weakly prime, because it can be changed into another prime (12740747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6370173 + 6370174.

It is an arithmetic number, because the mean of its divisors is an integer number (6370174).

Almost surely, 2^12740347 is an apocalyptic number.

12740347 is a deficient number, since it is larger than the sum of its proper divisors (1).

12740347 is an equidigital number, since it uses as much as digits as its factorization.

12740347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 12740347 is about 3569.3622679689. The cubic root of 12740347 is about 233.5574646842.

The spelling of 12740347 in words is "twelve million, seven hundred forty thousand, three hundred forty-seven".