12704227 has 4 divisors (see below), whose sum is σ = 12865120. Its totient is φ = 12543336.

The previous prime is 12704213. The next prime is 12704231. The reversal of 12704227 is 72240721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12704227 is a prime.

It is a super-2 number, since 2×12704227² = 322794767335058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12704267) 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, 80328 + ... + 80485.

It is an arithmetic number, because the mean of its divisors is an integer number (3216280).

Almost surely, 2^12704227 is an apocalyptic number.

12704227 is a deficient number, since it is larger than the sum of its proper divisors (160893).

12704227 is an equidigital number, since it uses as much as digits as its factorization.

12704227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160892.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 12704227 is about 3564.2989493027. The cubic root of 12704227 is about 233.3365371442.

Adding to 12704227 its reverse (72240721), we get a palindrome (84944948).

The spelling of 12704227 in words is "twelve million, seven hundred four thousand, two hundred twenty-seven".