12663841 has 8 divisors (see below), whose sum is σ = 13113344. Its totient is φ = 12216960.

The previous prime is 12663829. The next prime is 12663877. The reversal of 12663841 is 14836621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12663841 - 2⁵ = 12663809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12663881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18481 + ... + 19153.

It is an arithmetic number, because the mean of its divisors is an integer number (1639168).

Almost surely, 2^12663841 is an apocalyptic number.

It is an amenable number.

12663841 is a deficient number, since it is larger than the sum of its proper divisors (449503).

12663841 is an equidigital number, since it uses as much as digits as its factorization.

12663841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311.

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

The square root of 12663841 is about 3558.6290899727. The cubic root of 12663841 is about 233.0890202435.

The spelling of 12663841 in words is "twelve million, six hundred sixty-three thousand, eight hundred forty-one".