12247566 has 16 divisors (see below), whose sum is σ = 24530688. Its totient is φ = 4076600.

The previous prime is 12247549. The next prime is 12247577. The reversal of 12247566 is 66574221.

12247566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 5611 + ... + 7481.

It is an arithmetic number, because the mean of its divisors is an integer number (1533168).

Almost surely, 2^12247566 is an apocalyptic number.

12247566 is the 1871-st nonagonal number.

12247566 is an abundant number, since it is smaller than the sum of its proper divisors (12283122).

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

12247566 is a wasteful number, since it uses less digits than its factorization.

12247566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967.

The product of its digits is 20160, while the sum is 33.

The square root of 12247566 is about 3499.6522684404. The cubic root of 12247566 is about 230.5065458339.

It can be divided in two parts, 12 and 247566, that multiplied together give a palindrome (2970792).

The spelling of 12247566 in words is "twelve million, two hundred forty-seven thousand, five hundred sixty-six".