12878526 has 16 divisors (see below), whose sum is σ = 25795728. Its totient is φ = 4286400.

The previous prime is 12878521. The next prime is 12878531. The reversal of 12878526 is 62587821.

It is an interprime number because it is at equal distance from previous prime (12878521) and next prime (12878531).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4506 + ... + 6786.

It is an arithmetic number, because the mean of its divisors is an integer number (1612233).

Almost surely, 2^12878526 is an apocalyptic number.

12878526 is an abundant number, since it is smaller than the sum of its proper divisors (12917202).

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

12878526 is a wasteful number, since it uses less digits than its factorization.

12878526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227.

The product of its digits is 53760, while the sum is 39.

The square root of 12878526 is about 3588.6663260883. Note that the first 3 decimals coincide. The cubic root of 12878526 is about 234.3988012806.

The spelling of 12878526 in words is "twelve million, eight hundred seventy-eight thousand, five hundred twenty-six".