12247666 has 32 divisors (see below), whose sum is σ = 20574720. Its totient is φ = 5443200.

The previous prime is 12247649. The next prime is 12247673. The reversal of 12247666 is 66674221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43446 + ... + 43726.

It is an arithmetic number, because the mean of its divisors is an integer number (642960).

Almost surely, 2^12247666 is an apocalyptic number.

12247666 is a deficient number, since it is larger than the sum of its proper divisors (8327054).

12247666 is a wasteful number, since it uses less digits than its factorization.

12247666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its digits is 24192, while the sum is 34.

The square root of 12247666 is about 3499.6665555450. Note that the first 3 decimals coincide. The cubic root of 12247666 is about 230.5071731855.

The spelling of 12247666 in words is "twelve million, two hundred forty-seven thousand, six hundred sixty-six".