12727227 has 4 divisors (see below), whose sum is σ = 16969640. Its totient is φ = 8484816.

The previous prime is 12727213. The next prime is 12727229. The reversal of 12727227 is 72272721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72272721 = 3 ⋅24090907.

It is not a de Polignac number, because 12727227 - 2¹² = 12723131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12727194 and 12727203.

It is not an unprimeable number, because it can be changed into a prime (12727229) 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 3 ways as a sum of consecutive naturals, for example, 2121202 + ... + 2121207.

It is an arithmetic number, because the mean of its divisors is an integer number (4242410).

Almost surely, 2^12727227 is an apocalyptic number.

12727227 is a deficient number, since it is larger than the sum of its proper divisors (4242413).

12727227 is an equidigital number, since it uses as much as digits as its factorization.

12727227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242412.

The product of its digits is 5488, while the sum is 30.

The square root of 12727227 is about 3567.5239312442. The cubic root of 12727227 is about 233.4772647126.

Adding to 12727227 its reverse (72272721), we get a palindrome (84999948).

The spelling of 12727227 in words is "twelve million, seven hundred twenty-seven thousand, two hundred twenty-seven".