12742617 has 4 divisors (see below), whose sum is σ = 16990160. Its totient is φ = 8495076.

The previous prime is 12742589. The next prime is 12742627. The reversal of 12742617 is 71624721.

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 not a de Polignac number, because 12742617 - 2⁶ = 12742553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12742627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123767 + ... + 2123772.

It is an arithmetic number, because the mean of its divisors is an integer number (4247540).

Almost surely, 2^12742617 is an apocalyptic number.

It is an amenable number.

12742617 is a deficient number, since it is larger than the sum of its proper divisors (4247543).

12742617 is an equidigital number, since it uses as much as digits as its factorization.

12742617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247542.

The product of its digits is 4704, while the sum is 30.

The square root of 12742617 is about 3569.6802377804. The cubic root of 12742617 is about 233.5713351583.

The spelling of 12742617 in words is "twelve million, seven hundred forty-two thousand, six hundred seventeen".