12967397 has 4 divisors (see below), whose sum is σ = 12974700. Its totient is φ = 12960096.

The previous prime is 12967387. The next prime is 12967411. The reversal of 12967397 is 79376921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1366561 + 11600836 = 1169^2 + 3406^2 .

It is a cyclic number.

It is not a de Polignac number, because 12967397 - 2²⁰ = 11918821 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 (12967327) 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, 923 + ... + 5175.

It is an arithmetic number, because the mean of its divisors is an integer number (3243675).

Almost surely, 2^12967397 is an apocalyptic number.

It is an amenable number.

12967397 is a deficient number, since it is larger than the sum of its proper divisors (7303).

12967397 is an equidigital number, since it uses as much as digits as its factorization.

12967397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7302.

The product of its digits is 142884, while the sum is 44.

The square root of 12967397 is about 3601.0272145598. The cubic root of 12967397 is about 234.9367386682.

The spelling of 12967397 in words is "twelve million, nine hundred sixty-seven thousand, three hundred ninety-seven".