12585823 has 4 divisors (see below), whose sum is σ = 12593320. Its totient is φ = 12578328.

The previous prime is 12585817. The next prime is 12585829. The reversal of 12585823 is 32858521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32858521 = 523 ⋅62827.

It is an interprime number because it is at equal distance from previous prime (12585817) and next prime (12585829).

It is a cyclic number.

It is not a de Polignac number, because 12585823 - 2⁵ = 12585791 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 (12585829) 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 3 ways as a sum of consecutive naturals, for example, 61 + ... + 5017.

It is an arithmetic number, because the mean of its divisors is an integer number (3148330).

Almost surely, 2^12585823 is an apocalyptic number.

12585823 is a deficient number, since it is larger than the sum of its proper divisors (7497).

12585823 is an equidigital number, since it uses as much as digits as its factorization.

12585823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7496.

The product of its digits is 19200, while the sum is 34.

The square root of 12585823 is about 3547.6503491748. The cubic root of 12585823 is about 232.6093708265.

The spelling of 12585823 in words is "twelve million, five hundred eighty-five thousand, eight hundred twenty-three".