12917349 has 6 divisors (see below), whose sum is σ = 18658406. Its totient is φ = 8611560.

The previous prime is 12917309. The next prime is 12917353. The reversal of 12917349 is 94371921.

It can be written as a sum of positive squares in only one way, i.e., 9345249 + 3572100 = 3057^2 + 1890^2 .

It is not a de Polignac number, because 12917349 - 2⁷ = 12917221 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 (12917309) 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 5 ways as a sum of consecutive naturals, for example, 717622 + ... + 717639.

Almost surely, 2^12917349 is an apocalyptic number.

It is an amenable number.

12917349 is a deficient number, since it is larger than the sum of its proper divisors (5741057).

12917349 is a wasteful number, since it uses less digits than its factorization.

12917349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435267 (or 1435264 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 12917349 is about 3594.0713682396. The cubic root of 12917349 is about 234.6341008725.

The spelling of 12917349 in words is "twelve million, nine hundred seventeen thousand, three hundred forty-nine".