5638579 has 4 divisors (see below), whose sum is σ = 5691384. Its totient is φ = 5585776.

The previous prime is 5638537. The next prime is 5638601. The reversal of 5638579 is 9758365.

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 5638579 - 2¹⁵ = 5605811 is a prime.

It is a Duffinian number.

5638579 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5638379) 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, 26242 + ... + 26455.

It is an arithmetic number, because the mean of its divisors is an integer number (1422846).

Almost surely, 2^5638579 is an apocalyptic number.

5638579 is a deficient number, since it is larger than the sum of its proper divisors (52805).

5638579 is a wasteful number, since it uses less digits than its factorization.

5638579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52804.

The product of its digits is 226800, while the sum is 43.

The square root of 5638579 is about 2374.5692240910. The cubic root of 5638579 is about 177.9876585308.

The spelling of 5638579 in words is "five million, six hundred thirty-eight thousand, five hundred seventy-nine".