12712863 has 4 divisors (see below), whose sum is σ = 16950488. Its totient is φ = 8475240.

The previous prime is 12712823. The next prime is 12712873. The reversal of 12712863 is 36821721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36821721 = 3 ⋅12273907.

It is not a de Polignac number, because 12712863 - 2⁹ = 12712351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12712863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712823) 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, 2118808 + ... + 2118813.

It is an arithmetic number, because the mean of its divisors is an integer number (4237622).

Almost surely, 2^12712863 is an apocalyptic number.

12712863 is a deficient number, since it is larger than the sum of its proper divisors (4237625).

12712863 is an equidigital number, since it uses as much as digits as its factorization.

12712863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237624.

The product of its digits is 4032, while the sum is 30.

The square root of 12712863 is about 3565.5102019206. The cubic root of 12712863 is about 233.3893971859.

The spelling of 12712863 in words is "twelve million, seven hundred twelve thousand, eight hundred sixty-three".