12878918 has 8 divisors (see below), whose sum is σ = 20804448. Its totient is φ = 5944104.

The previous prime is 12878891. The next prime is 12878927. The reversal of 12878918 is 81987821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247646 + ... + 247697.

It is an arithmetic number, because the mean of its divisors is an integer number (2600556).

Almost surely, 2^12878918 is an apocalyptic number.

12878918 is a deficient number, since it is larger than the sum of its proper divisors (7925530).

12878918 is a wasteful number, since it uses less digits than its factorization.

12878918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495358.

The product of its digits is 64512, while the sum is 44.

The square root of 12878918 is about 3588.7209420628. The cubic root of 12878918 is about 234.4011794875.

The spelling of 12878918 in words is "twelve million, eight hundred seventy-eight thousand, nine hundred eighteen".