12584257 has 4 divisors (see below), whose sum is σ = 14382016. Its totient is φ = 10786500.

The previous prime is 12584227. The next prime is 12584261. The reversal of 12584257 is 75248521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75248521 = 89 ⋅845489.

It is a cyclic number.

It is not a de Polignac number, because 12584257 - 2⁷ = 12584129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12584207) 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, 898869 + ... + 898882.

It is an arithmetic number, because the mean of its divisors is an integer number (3595504).

Almost surely, 2^12584257 is an apocalyptic number.

It is an amenable number.

12584257 is a deficient number, since it is larger than the sum of its proper divisors (1797759).

12584257 is an equidigital number, since it uses as much as digits as its factorization.

12584257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797758.

The product of its digits is 22400, while the sum is 34.

The square root of 12584257 is about 3547.4296328469. The cubic root of 12584257 is about 232.5997228974.

The spelling of 12584257 in words is "twelve million, five hundred eighty-four thousand, two hundred fifty-seven".