12732871 has 4 divisors (see below), whose sum is σ = 12770992. Its totient is φ = 12694752.

The previous prime is 12732833. The next prime is 12732877. The reversal of 12732871 is 17823721.

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 12732871 - 2⁷ = 12732743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12732877) 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, 18555 + ... + 19228.

It is an arithmetic number, because the mean of its divisors is an integer number (3192748).

Almost surely, 2^12732871 is an apocalyptic number.

12732871 is a deficient number, since it is larger than the sum of its proper divisors (38121).

12732871 is an equidigital number, since it uses as much as digits as its factorization.

12732871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38120.

The product of its digits is 4704, while the sum is 31.

The square root of 12732871 is about 3568.3148683938. The cubic root of 12732871 is about 233.5117721231.

The spelling of 12732871 in words is "twelve million, seven hundred thirty-two thousand, eight hundred seventy-one".