12573666 has 48 divisors (see below), whose sum is σ = 31584384. Its totient is φ = 3540672.

The previous prime is 12573661. The next prime is 12573679. The reversal of 12573666 is 66637521.

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 12573666.

It is not an unprimeable number, because it can be changed into a prime (12573661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8515 + ... + 9881.

It is an arithmetic number, because the mean of its divisors is an integer number (658008).

Almost surely, 2^12573666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12573666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15792192).

12573666 is an abundant number, since it is smaller than the sum of its proper divisors (19010718).

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

12573666 is a wasteful number, since it uses less digits than its factorization.

12573666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455 (or 1452 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 12573666 is about 3545.9365476556. The cubic root of 12573666 is about 232.5344520573.

The spelling of 12573666 in words is "twelve million, five hundred seventy-three thousand, six hundred sixty-six".