12812766 has 16 divisors (see below), whose sum is σ = 25660800. Its totient is φ = 4265048.

The previous prime is 12812749. The next prime is 12812777. The reversal of 12812766 is 66721821.

12812766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7105 + ... + 8723.

It is an arithmetic number, because the mean of its divisors is an integer number (1603800).

Almost surely, 2^12812766 is an apocalyptic number.

12812766 is an abundant number, since it is smaller than the sum of its proper divisors (12848034).

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

12812766 is a wasteful number, since it uses less digits than its factorization.

12812766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943.

The product of its digits is 8064, while the sum is 33.

The square root of 12812766 is about 3579.4924221180. The cubic root of 12812766 is about 233.9991599064. Note that the first 3 decimals are identical.

The spelling of 12812766 in words is "twelve million, eight hundred twelve thousand, seven hundred sixty-six".