12727457 has 4 divisors (see below), whose sum is σ = 12778416. Its totient is φ = 12676500.

The previous prime is 12727447. The next prime is 12727471. The reversal of 12727457 is 75472721.

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 12727457 - 2¹⁰ = 12726433 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25103 + ... + 25604.

It is an arithmetic number, because the mean of its divisors is an integer number (3194604).

Almost surely, 2^12727457 is an apocalyptic number.

It is an amenable number.

12727457 is a deficient number, since it is larger than the sum of its proper divisors (50959).

12727457 is an equidigital number, since it uses as much as digits as its factorization.

12727457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50958.

The product of its digits is 27440, while the sum is 35.

The square root of 12727457 is about 3567.5561663413. The cubic root of 12727457 is about 233.4786711317.

The spelling of 12727457 in words is "twelve million, seven hundred twenty-seven thousand, four hundred fifty-seven".