12086439 has 16 divisors (see below), whose sum is σ = 17146080. Its totient is φ = 7546880.

The previous prime is 12086429. The next prime is 12086443. The reversal of 12086439 is 93468021.

12086439 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12086439 - 2⁴ = 12086423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12086429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13279 + ... + 14159.

It is an arithmetic number, because the mean of its divisors is an integer number (1071630).

Almost surely, 2^12086439 is an apocalyptic number.

12086439 is a deficient number, since it is larger than the sum of its proper divisors (5059641).

12086439 is a wasteful number, since it uses less digits than its factorization.

12086439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12086439 is about 3476.5556230269. Note that the first 3 decimals coincide. The cubic root of 12086439 is about 229.4912447237.

The spelling of 12086439 in words is "twelve million, eighty-six thousand, four hundred thirty-nine".