12712886 has 4 divisors (see below), whose sum is σ = 19069332. Its totient is φ = 6356442.

The previous prime is 12712873. The next prime is 12712891. The reversal of 12712886 is 68821721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68821721 = 1117 ⋅61613.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3178220 + ... + 3178223.

It is an arithmetic number, because the mean of its divisors is an integer number (4767333).

Almost surely, 2^12712886 is an apocalyptic number.

12712886 is a deficient number, since it is larger than the sum of its proper divisors (6356446).

12712886 is an equidigital number, since it uses as much as digits as its factorization.

12712886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356445.

The product of its digits is 10752, while the sum is 35.

The square root of 12712886 is about 3565.5134272640. The cubic root of 12712886 is about 233.3895379344.

The spelling of 12712886 in words is "twelve million, seven hundred twelve thousand, eight hundred eighty-six".