12786873 has 32 divisors (see below), whose sum is σ = 20570112. Its totient is φ = 6969600.

The previous prime is 12786871. The next prime is 12786889. The reversal of 12786873 is 37868721.

12786873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12786873 - 2¹ = 12786871 is a prime.

It is a super-2 number, since 2×12786873² = 327008242236258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12786871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12408 + ... + 13398.

It is an arithmetic number, because the mean of its divisors is an integer number (642816).

Almost surely, 2^12786873 is an apocalyptic number.

It is an amenable number.

12786873 is a deficient number, since it is larger than the sum of its proper divisors (7783239).

12786873 is a wasteful number, since it uses less digits than its factorization.

12786873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045.

The product of its digits is 112896, while the sum is 42.

The square root of 12786873 is about 3575.8737393817. The cubic root of 12786873 is about 233.8414259118.

It can be divided in two parts, 12 and 786873, that added together give a triangular number (786885 = T₁₂₅₄).

The spelling of 12786873 in words is "twelve million, seven hundred eighty-six thousand, eight hundred seventy-three".