12878502 has 64 divisors (see below), whose sum is σ = 32148480. Its totient is φ = 3348864.

The previous prime is 12878491. The next prime is 12878519. The reversal of 12878502 is 20587821.

It is a Smith number, since the sum of its digits (33) 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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56124 + ... + 56352.

It is an arithmetic number, because the mean of its divisors is an integer number (502320).

Almost surely, 2^12878502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12878502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16074240).

12878502 is an abundant number, since it is smaller than the sum of its proper divisors (19269978).

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

12878502 is a wasteful number, since it uses less digits than its factorization.

12878502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 12878502 is about 3588.6629822261. The cubic root of 12878502 is about 234.3986556746.

The spelling of 12878502 in words is "twelve million, eight hundred seventy-eight thousand, five hundred two".