12897326 has 8 divisors (see below), whose sum is σ = 20834184. Its totient is φ = 5952600.

The previous prime is 12897301. The next prime is 12897331. The reversal of 12897326 is 62379821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12897326.

It is a congruent number.

It is an unprimeable number.

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, 248000 + ... + 248051.

It is an arithmetic number, because the mean of its divisors is an integer number (2604273).

Almost surely, 2^12897326 is an apocalyptic number.

12897326 is a deficient number, since it is larger than the sum of its proper divisors (7936858).

12897326 is a wasteful number, since it uses less digits than its factorization.

12897326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496066.

The product of its digits is 36288, while the sum is 38.

The square root of 12897326 is about 3591.2847283389. The cubic root of 12897326 is about 234.5128038435.

The spelling of 12897326 in words is "twelve million, eight hundred ninety-seven thousand, three hundred twenty-six".