12740717 has 4 divisors (see below), whose sum is σ = 13898976. Its totient is φ = 11582460.

The previous prime is 12740711. The next prime is 12740719. The reversal of 12740717 is 71704721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12740717 - 2⁸ = 12740461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12740717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579113 + ... + 579134.

It is an arithmetic number, because the mean of its divisors is an integer number (3474744).

Almost surely, 2^12740717 is an apocalyptic number.

It is an amenable number.

12740717 is a deficient number, since it is larger than the sum of its proper divisors (1158259).

12740717 is a wasteful number, since it uses less digits than its factorization.

12740717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158258.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 12740717 is about 3569.4140975796. The cubic root of 12740717 is about 233.5597256227.

The spelling of 12740717 in words is "twelve million, seven hundred forty thousand, seven hundred seventeen".