12247866 has 24 divisors (see below), whose sum is σ = 26803764. Its totient is φ = 4041600.

The previous prime is 12247843. The next prime is 12247901. The reversal of 12247866 is 66874221.

12247866 is a `hidden beast` number, since 122 + 478 + 66 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11189025 + 1058841 = 3345^2 + 1029^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12247866.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1551 + ... + 5186.

Almost surely, 2^12247866 is an apocalyptic number.

12247866 is an abundant number, since it is smaller than the sum of its proper divisors (14555898).

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

12247866 is a wasteful number, since it uses less digits than its factorization.

12247866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6846 (or 6843 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 12247866 is about 3499.6951295791. The cubic root of 12247866 is about 230.5084278785.

The spelling of 12247866 in words is "twelve million, two hundred forty-seven thousand, eight hundred sixty-six".