12586869 has 6 divisors (see below), whose sum is σ = 18181046. Its totient is φ = 8391240.

The previous prime is 12586859. The next prime is 12586891. The reversal of 12586869 is 96868521.

12586869 is a `hidden beast` number, since 1 + 2 + 586 + 8 + 69 = 666.

12586869 is digitally balanced in base 3, 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 only one way, i.e., 12006225 + 580644 = 3465^2 + 762^2 .

It is not a de Polignac number, because 12586869 - 2⁴ = 12586853 is a prime.

It is a super-2 number, since 2×12586869² = 316858542446322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12586829) 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 5 ways as a sum of consecutive naturals, for example, 699262 + ... + 699279.

Almost surely, 2^12586869 is an apocalyptic number.

It is an amenable number.

12586869 is a deficient number, since it is larger than the sum of its proper divisors (5594177).

12586869 is a wasteful number, since it uses less digits than its factorization.

12586869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398547 (or 1398544 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 12586869 is about 3547.7977676299. The cubic root of 12586869 is about 232.6158146551.

The spelling of 12586869 in words is "twelve million, five hundred eighty-six thousand, eight hundred sixty-nine".