12664237 has 8 divisors (see below), whose sum is σ = 13250880. Its totient is φ = 12080640.

The previous prime is 12664217. The next prime is 12664247. The reversal of 12664237 is 73246621.

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 12664237 - 2⁷ = 12664109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12664199 and 12664208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14314 + ... + 15172.

It is an arithmetic number, because the mean of its divisors is an integer number (1656360).

Almost surely, 2^12664237 is an apocalyptic number.

It is an amenable number.

12664237 is a deficient number, since it is larger than the sum of its proper divisors (586643).

12664237 is an equidigital number, since it uses as much as digits as its factorization.

12664237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523.

The product of its digits is 12096, while the sum is 31.

The square root of 12664237 is about 3558.6847289413. The cubic root of 12664237 is about 233.0914497931.

The spelling of 12664237 in words is "twelve million, six hundred sixty-four thousand, two hundred thirty-seven".