12413666 has 4 divisors (see below), whose sum is σ = 18620502. Its totient is φ = 6206832.

The previous prime is 12413657. The next prime is 12413701. The reversal of 12413666 is 66631421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8497225 + 3916441 = 2915^2 + 1979^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3103415 + ... + 3103418.

Almost surely, 2^12413666 is an apocalyptic number.

12413666 is a deficient number, since it is larger than the sum of its proper divisors (6206836).

12413666 is an equidigital number, since it uses as much as digits as its factorization.

12413666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6206835.

The product of its digits is 5184, while the sum is 29.

The square root of 12413666 is about 3523.3032795943. The cubic root of 12413666 is about 231.5439042723.

The spelling of 12413666 in words is "twelve million, four hundred thirteen thousand, six hundred sixty-six".