12878343 has 24 divisors (see below), whose sum is σ = 19219200. Its totient is φ = 8306064.

The previous prime is 12878339. The next prime is 12878347. The reversal of 12878343 is 34387821.

It is an interprime number because it is at equal distance from previous prime (12878339) and next prime (12878347).

It is not a de Polignac number, because 12878343 - 2² = 12878339 is a prime.

Its product of digits (32256) is a multiple of the sum of its prime divisors (448).

It is a junction number, because it is equal to n+sod(n) for n = 12878298 and 12878307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41796 + ... + 42102.

It is an arithmetic number, because the mean of its divisors is an integer number (800800).

Almost surely, 2^12878343 is an apocalyptic number.

12878343 is a deficient number, since it is larger than the sum of its proper divisors (6340857).

12878343 is a wasteful number, since it uses less digits than its factorization.

12878343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 448 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 12878343 is about 3588.6408290605. The cubic root of 12878343 is about 234.3976910298.

The spelling of 12878343 in words is "twelve million, eight hundred seventy-eight thousand, three hundred forty-three".