12870871 has 6 divisors (see below), whose sum is σ = 13937280. Its totient is φ = 11880648.

The previous prime is 12870863. The next prime is 12870877. The reversal of 12870871 is 17807821.

12870871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12870871 - 2³ = 12870863 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 (12870877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37911 + ... + 38248.

It is an arithmetic number, because the mean of its divisors is an integer number (2322880).

Almost surely, 2^12870871 is an apocalyptic number.

12870871 is a deficient number, since it is larger than the sum of its proper divisors (1066409).

12870871 is an equidigital number, since it uses as much as digits as its factorization.

12870871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76185 (or 76172 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 12870871 is about 3587.5996153417. The cubic root of 12870871 is about 234.3523498348.

The spelling of 12870871 in words is "twelve million, eight hundred seventy thousand, eight hundred seventy-one".