12663337 has 4 divisors (see below), whose sum is σ = 12673360. Its totient is φ = 12653316.

The previous prime is 12663331. The next prime is 12663341. The reversal of 12663337 is 73336621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 73336621 = 29 ⋅2528849.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12663337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12663299 and 12663308.

It is not an unprimeable number, because it can be changed into a prime (12663331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2787 + ... + 5752.

It is an arithmetic number, because the mean of its divisors is an integer number (3168340).

Almost surely, 2^12663337 is an apocalyptic number.

It is an amenable number.

12663337 is a deficient number, since it is larger than the sum of its proper divisors (10023).

12663337 is an equidigital number, since it uses as much as digits as its factorization.

12663337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022.

The product of its digits is 13608, while the sum is 31.

The square root of 12663337 is about 3558.5582754818. The cubic root of 12663337 is about 233.0859280162.

Adding to 12663337 its reverse (73336621), we get a palindrome (85999958).

The spelling of 12663337 in words is "twelve million, six hundred sixty-three thousand, three hundred thirty-seven".