12663433 has 2 divisors, whose sum is σ = 12663434. Its totient is φ = 12663432.

The previous prime is 12663403. The next prime is 12663439. The reversal of 12663433 is 33436621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9412624 + 3250809 = 3068^2 + 1803^2 .

It is an emirp because it is prime and its reverse (33436621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12663433 - 2¹³ = 12655241 is a prime.

It is not a weakly prime, because it can be changed into another prime (12663439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331716 + 6331717.

It is an arithmetic number, because the mean of its divisors is an integer number (6331717).

Almost surely, 2^12663433 is an apocalyptic number.

It is an amenable number.

12663433 is a deficient number, since it is larger than the sum of its proper divisors (1).

12663433 is an equidigital number, since it uses as much as digits as its factorization.

12663433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 28.

The square root of 12663433 is about 3558.5717640649. The cubic root of 12663433 is about 233.0865170182.

The spelling of 12663433 in words is "twelve million, six hundred sixty-three thousand, four hundred thirty-three".