12585387 has 4 divisors (see below), whose sum is σ = 16780520. Its totient is φ = 8390256.

The previous prime is 12585383. The next prime is 12585403. The reversal of 12585387 is 78358521.

12585387 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12585387 - 2² = 12585383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12585383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2097562 + ... + 2097567.

It is an arithmetic number, because the mean of its divisors is an integer number (4195130).

Almost surely, 2^12585387 is an apocalyptic number.

12585387 is a deficient number, since it is larger than the sum of its proper divisors (4195133).

12585387 is an equidigital number, since it uses as much as digits as its factorization.

12585387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195132.

The product of its digits is 67200, while the sum is 39.

The square root of 12585387 is about 3547.5888995203. The cubic root of 12585387 is about 232.6066847657.

The spelling of 12585387 in words is "twelve million, five hundred eighty-five thousand, three hundred eighty-seven".