12871892 has 48 divisors (see below), whose sum is σ = 26308800. Its totient is φ = 5448960.

The previous prime is 12871891. The next prime is 12871933. The reversal of 12871892 is 29817821.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12871891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74318 + ... + 74490.

It is an arithmetic number, because the mean of its divisors is an integer number (548100).

Almost surely, 2^12871892 is an apocalyptic number.

It is an amenable number.

12871892 is an abundant number, since it is smaller than the sum of its proper divisors (13436908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12871892 is a wasteful number, since it uses less digits than its factorization.

12871892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 294 counting only the distinct ones).

The product of its digits is 16128, while the sum is 38.

The square root of 12871892 is about 3587.7419082203. The cubic root of 12871892 is about 234.3585464479.

The spelling of 12871892 in words is "twelve million, eight hundred seventy-one thousand, eight hundred ninety-two".