12727417 has 4 divisors (see below), whose sum is σ = 12736756. Its totient is φ = 12718080.

The previous prime is 12727399. The next prime is 12727427. The reversal of 12727417 is 71472721.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6497401 + 6230016 = 2549^2 + 2496^2 .

It is a cyclic number.

It is not a de Polignac number, because 12727417 - 2⁷ = 12727289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12727427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2184 + ... + 5497.

It is an arithmetic number, because the mean of its divisors is an integer number (3184189).

Almost surely, 2^12727417 is an apocalyptic number.

It is an amenable number.

12727417 is a deficient number, since it is larger than the sum of its proper divisors (9339).

12727417 is an equidigital number, since it uses as much as digits as its factorization.

12727417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9338.

The product of its digits is 5488, while the sum is 31.

The square root of 12727417 is about 3567.5505602584. The cubic root of 12727417 is about 233.4784265383.

The spelling of 12727417 in words is "twelve million, seven hundred twenty-seven thousand, four hundred seventeen".