12886851 has 4 divisors (see below), whose sum is σ = 17182472. Its totient is φ = 8591232.

The previous prime is 12886849. The next prime is 12886891. The reversal of 12886851 is 15868821.

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

It is not a de Polignac number, because 12886851 - 2¹ = 12886849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12886891) 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, 2147806 + ... + 2147811.

It is an arithmetic number, because the mean of its divisors is an integer number (4295618).

Almost surely, 2^12886851 is an apocalyptic number.

12886851 is a deficient number, since it is larger than the sum of its proper divisors (4295621).

12886851 is an equidigital number, since it uses as much as digits as its factorization.

12886851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295620.

The product of its digits is 30720, while the sum is 39.

The square root of 12886851 is about 3589.8260403535. The cubic root of 12886851 is about 234.4492974761.

The spelling of 12886851 in words is "twelve million, eight hundred eighty-six thousand, eight hundred fifty-one".