12878014 has 4 divisors (see below), whose sum is σ = 19317024. Its totient is φ = 6439006.

The previous prime is 12877981. The next prime is 12878017. The reversal of 12878014 is 41087821.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3219502 + ... + 3219505.

It is an arithmetic number, because the mean of its divisors is an integer number (4829256).

Almost surely, 2^12878014 is an apocalyptic number.

12878014 is a deficient number, since it is larger than the sum of its proper divisors (6439010).

12878014 is an equidigital number, since it uses as much as digits as its factorization.

12878014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6439009.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 12878014 is about 3588.5949896861. The cubic root of 12878014 is about 234.3956949785.

The spelling of 12878014 in words is "twelve million, eight hundred seventy-eight thousand, fourteen".