2584247 has 4 divisors (see below), whose sum is σ = 2720280. Its totient is φ = 2448216.

The previous prime is 2584229. The next prime is 2584249. The reversal of 2584247 is 7424852.

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

It is a cyclic number.

It is not a de Polignac number, because 2584247 - 2¹⁰ = 2583223 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 (2584249) 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, 67988 + ... + 68025.

It is an arithmetic number, because the mean of its divisors is an integer number (680070).

2^2584247 is an apocalyptic number.

2584247 is a deficient number, since it is larger than the sum of its proper divisors (136033).

2584247 is a wasteful number, since it uses less digits than its factorization.

2584247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136032.

The product of its digits is 17920, while the sum is 32.

The square root of 2584247 is about 1607.5593301648. The cubic root of 2584247 is about 137.2286129185.

The spelling of 2584247 in words is "two million, five hundred eighty-four thousand, two hundred forty-seven".