12871392 has 24 divisors (see below), whose sum is σ = 33787656. Its totient is φ = 4290432.

The previous prime is 12871387. The next prime is 12871399. The reversal of 12871392 is 29317821.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12871399) 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, 66943 + ... + 67134.

It is an arithmetic number, because the mean of its divisors is an integer number (1407819).

Almost surely, 2^12871392 is an apocalyptic number.

12871392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12871392 is an abundant number, since it is smaller than the sum of its proper divisors (20916264).

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

12871392 is a wasteful number, since it uses less digits than its factorization.

12871392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134090 (or 134082 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 12871392 is about 3587.6722258311. The cubic root of 12871392 is about 234.3555119085.

The spelling of 12871392 in words is "twelve million, eight hundred seventy-one thousand, three hundred ninety-two".