12384661 has 2 divisors, whose sum is σ = 12384662. Its totient is φ = 12384660.

The previous prime is 12384643. The next prime is 12384667. The reversal of 12384661 is 16648321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11015761 + 1368900 = 3319^2 + 1170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12384661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12384667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6192330 + 6192331.

It is an arithmetic number, because the mean of its divisors is an integer number (6192331).

Almost surely, 2^12384661 is an apocalyptic number.

It is an amenable number.

12384661 is a deficient number, since it is larger than the sum of its proper divisors (1).

12384661 is an equidigital number, since it uses as much as digits as its factorization.

12384661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 12384661 is about 3519.1847067183. The cubic root of 12384661 is about 231.3634266057.

The spelling of 12384661 in words is "twelve million, three hundred eighty-four thousand, six hundred sixty-one".