12926717 has 4 divisors (see below), whose sum is σ = 12959676. Its totient is φ = 12893760.

The previous prime is 12926701. The next prime is 12926729. The reversal of 12926717 is 71762921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71762921 = 23 ⋅3120127.

It can be written as a sum of positive squares in 2 ways, for example, as 9369721 + 3556996 = 3061^2 + 1886^2 .

It is a cyclic number.

It is not a de Polignac number, because 12926717 - 2⁴ = 12926701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12926737) 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, 15884 + ... + 16677.

It is an arithmetic number, because the mean of its divisors is an integer number (3239919).

Almost surely, 2^12926717 is an apocalyptic number.

It is an amenable number.

12926717 is a deficient number, since it is larger than the sum of its proper divisors (32959).

12926717 is an equidigital number, since it uses as much as digits as its factorization.

12926717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32958.

The product of its digits is 10584, while the sum is 35.

The square root of 12926717 is about 3595.3743894065. The cubic root of 12926717 is about 234.6908080991.

The spelling of 12926717 in words is "twelve million, nine hundred twenty-six thousand, seven hundred seventeen".