12638753 has 4 divisors (see below), whose sum is σ = 13188288. Its totient is φ = 12089220.

The previous prime is 12638741. The next prime is 12638761. The reversal of 12638753 is 35783621.

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.

It is a cyclic number.

It is not a de Polignac number, because 12638753 - 2¹⁴ = 12622369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12638453) 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, 274733 + ... + 274778.

It is an arithmetic number, because the mean of its divisors is an integer number (3297072).

Almost surely, 2^12638753 is an apocalyptic number.

It is an amenable number.

12638753 is a deficient number, since it is larger than the sum of its proper divisors (549535).

12638753 is an equidigital number, since it uses as much as digits as its factorization.

12638753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549534.

The product of its digits is 30240, while the sum is 35.

The square root of 12638753 is about 3555.1023895241. The cubic root of 12638753 is about 232.9349963262.

The spelling of 12638753 in words is "twelve million, six hundred thirty-eight thousand, seven hundred fifty-three".