12396866 has 8 divisors (see below), whose sum is σ = 18620220. Its totient is φ = 6190128.

The previous prime is 12396863. The next prime is 12396889. The reversal of 12396866 is 66869321.

It can be written as a sum of positive squares in 2 ways, for example, as 11122225 + 1274641 = 3335^2 + 1129^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12396863) by changing a digit.

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, 2081 + ... + 5396.

Almost surely, 2^12396866 is an apocalyptic number.

12396866 is a deficient number, since it is larger than the sum of its proper divisors (6223354).

12396866 is an equidigital number, since it uses as much as digits as its factorization.

12396866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308.

The product of its digits is 93312, while the sum is 41.

The square root of 12396866 is about 3520.9183461137. The cubic root of 12396866 is about 231.4394040190.

The spelling of 12396866 in words is "twelve million, three hundred ninety-six thousand, eight hundred sixty-six".