12636673 has 4 divisors (see below), whose sum is σ = 14441920. Its totient is φ = 10831428.

The previous prime is 12636641. The next prime is 12636703. The reversal of 12636673 is 37663621.

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 an emirpimes, since its reverse is a distinct semiprime: 37663621 = 283 ⋅133087.

It is a cyclic number.

It is not a de Polignac number, because 12636673 - 2⁵ = 12636641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12636473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902613 + ... + 902626.

It is an arithmetic number, because the mean of its divisors is an integer number (3610480).

Almost surely, 2^12636673 is an apocalyptic number.

It is an amenable number.

12636673 is a deficient number, since it is larger than the sum of its proper divisors (1805247).

12636673 is an equidigital number, since it uses as much as digits as its factorization.

12636673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805246.

The product of its digits is 27216, while the sum is 34.

The square root of 12636673 is about 3554.8098402024. The cubic root of 12636673 is about 232.9222173394.

The spelling of 12636673 in words is "twelve million, six hundred thirty-six thousand, six hundred seventy-three".