12727943 has 4 divisors (see below), whose sum is σ = 12766728. Its totient is φ = 12689160.

The previous prime is 12727909. The next prime is 12727987. The reversal of 12727943 is 34972721.

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

It is a cyclic number.

It is not a de Polignac number, because 12727943 - 2²² = 8533639 is a prime.

It is a super-2 number, since 2×12727943² = 324001066022498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12727903) 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, 18896 + ... + 19557.

It is an arithmetic number, because the mean of its divisors is an integer number (3191682).

Almost surely, 2^12727943 is an apocalyptic number.

12727943 is a deficient number, since it is larger than the sum of its proper divisors (38785).

12727943 is an equidigital number, since it uses as much as digits as its factorization.

12727943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38784.

The product of its digits is 21168, while the sum is 35.

The square root of 12727943 is about 3567.6242795451. The cubic root of 12727943 is about 233.4816429008.

The spelling of 12727943 in words is "twelve million, seven hundred twenty-seven thousand, nine hundred forty-three".