12878536 has 16 divisors (see below), whose sum is σ = 26342640. Its totient is φ = 5853840.

The previous prime is 12878531. The next prime is 12878563. The reversal of 12878536 is 63587821.

It is not an unprimeable number, because it can be changed into a prime (12878531) 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, 73086 + ... + 73261.

It is an arithmetic number, because the mean of its divisors is an integer number (1646415).

Almost surely, 2^12878536 is an apocalyptic number.

It is an amenable number.

12878536 is an abundant number, since it is smaller than the sum of its proper divisors (13464104).

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

12878536 is a wasteful number, since it uses less digits than its factorization.

12878536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146364 (or 146360 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 12878536 is about 3588.6677193633. The cubic root of 12878536 is about 234.3988619498.

It can be divided in two parts, 128785 and 36, that added together give a palindrome (128821).

The spelling of 12878536 in words is "twelve million, eight hundred seventy-eight thousand, five hundred thirty-six".