12926971 has 4 divisors (see below), whose sum is σ = 12974944. Its totient is φ = 12879000.

The previous prime is 12926957. The next prime is 12926981. The reversal of 12926971 is 17962921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17962921 = 2213 ⋅8117.

It is a cyclic number.

It is not a de Polignac number, because 12926971 - 2⁵ = 12926939 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 12926971.

It is not an unprimeable number, because it can be changed into a prime (12926951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23580 + ... + 24121.

It is an arithmetic number, because the mean of its divisors is an integer number (3243736).

Almost surely, 2^12926971 is an apocalyptic number.

12926971 is a deficient number, since it is larger than the sum of its proper divisors (47973).

12926971 is an equidigital number, since it uses as much as digits as its factorization.

12926971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47972.

The product of its digits is 13608, while the sum is 37.

The square root of 12926971 is about 3595.4097123972. The cubic root of 12926971 is about 234.6923452534.

The spelling of 12926971 in words is "twelve million, nine hundred twenty-six thousand, nine hundred seventy-one".