12667297 has 4 divisors (see below), whose sum is σ = 12731796. Its totient is φ = 12602800.

The previous prime is 12667271. The next prime is 12667301. The reversal of 12667297 is 79276621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79276621 = 107 ⋅740903.

It can be written as a sum of positive squares in 2 ways, for example, as 9296401 + 3370896 = 3049^2 + 1836^2 .

It is a cyclic number.

It is not a de Polignac number, because 12667297 - 2¹⁹ = 12143009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12667267) 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, 31954 + ... + 32347.

It is an arithmetic number, because the mean of its divisors is an integer number (3182949).

Almost surely, 2^12667297 is an apocalyptic number.

It is an amenable number.

12667297 is a deficient number, since it is larger than the sum of its proper divisors (64499).

12667297 is an equidigital number, since it uses as much as digits as its factorization.

12667297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64498.

The product of its digits is 63504, while the sum is 40.

The square root of 12667297 is about 3559.1146370973. The cubic root of 12667297 is about 233.1102218780.

The spelling of 12667297 in words is "twelve million, six hundred sixty-seven thousand, two hundred ninety-seven".