12917343 has 4 divisors (see below), whose sum is σ = 17223128. Its totient is φ = 8611560.

The previous prime is 12917309. The next prime is 12917353. The reversal of 12917343 is 34371921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12917343 - 2⁸ = 12917087 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 12917343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12917353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2152888 + ... + 2152893.

It is an arithmetic number, because the mean of its divisors is an integer number (4305782).

Almost surely, 2^12917343 is an apocalyptic number.

12917343 is a deficient number, since it is larger than the sum of its proper divisors (4305785).

12917343 is an equidigital number, since it uses as much as digits as its factorization.

12917343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305784.

The product of its digits is 4536, while the sum is 30.

The square root of 12917343 is about 3594.0705335316. The cubic root of 12917343 is about 234.6340645440.

The spelling of 12917343 in words is "twelve million, nine hundred seventeen thousand, three hundred forty-three".