12866946 has 8 divisors (see below), whose sum is σ = 25733904. Its totient is φ = 4288980.

The previous prime is 12866941. The next prime is 12866947. The reversal of 12866946 is 64966821.

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

12866946 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12866898 and 12866907.

It is not an unprimeable number, because it can be changed into a prime (12866941) 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, 1072240 + ... + 1072251.

It is an arithmetic number, because the mean of its divisors is an integer number (3216738).

Almost surely, 2^12866946 is an apocalyptic number.

12866946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12866946 is a wasteful number, since it uses less digits than its factorization.

12866946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144496.

The product of its digits is 124416, while the sum is 42.

The square root of 12866946 is about 3587.0525504932. The cubic root of 12866946 is about 234.3285253273.

The spelling of 12866946 in words is "twelve million, eight hundred sixty-six thousand, nine hundred forty-six".