12873556 has 36 divisors (see below), whose sum is σ = 24773364. Its totient is φ = 5832960.

The previous prime is 12873551. The next prime is 12873559. The reversal of 12873556 is 65537821.

12873556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11628100 + 1245456 = 3410^2 + 1116^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

Its product of digits (50400) is a multiple of the sum of its prime factors (280).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12873551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65250 + ... + 65446.

It is an arithmetic number, because the mean of its divisors is an integer number (688149).

Almost surely, 2^12873556 is an apocalyptic number.

It is an amenable number.

12873556 is a deficient number, since it is larger than the sum of its proper divisors (11899808).

12873556 is a wasteful number, since it uses less digits than its factorization.

12873556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 247 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 12873556 is about 3587.9738014651. The cubic root of 12873556 is about 234.3686448292.

The spelling of 12873556 in words is "twelve million, eight hundred seventy-three thousand, five hundred fifty-six".