12086591 has 8 divisors (see below), whose sum is σ = 13640400. Its totient is φ = 10608640.

The previous prime is 12086579. The next prime is 12086611. The reversal of 12086591 is 19568021.

12086591 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12086591 - 2¹⁸ = 11824447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12089591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18626 + ... + 19263.

It is an arithmetic number, because the mean of its divisors is an integer number (1705050).

Almost surely, 2^12086591 is an apocalyptic number.

12086591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12086591 is a deficient number, since it is larger than the sum of its proper divisors (1553809).

12086591 is a wasteful number, since it uses less digits than its factorization.

12086591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37929.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 12086591 is about 3476.5774836756. The cubic root of 12086591 is about 229.4922067529.

The spelling of 12086591 in words is "twelve million, eighty-six thousand, five hundred ninety-one".