5638605 has 32 divisors (see below), whose sum is σ = 10450944. Its totient is φ = 2542656.

The previous prime is 5638603. The next prime is 5638613. The reversal of 5638605 is 5068365.

It is not a de Polignac number, because 5638605 - 2¹ = 5638603 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5638601) 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 31 ways as a sum of consecutive naturals, for example, 8392 + ... + 9038.

It is an arithmetic number, because the mean of its divisors is an integer number (326592).

Almost surely, 2^5638605 is an apocalyptic number.

It is an amenable number.

5638605 is a deficient number, since it is larger than the sum of its proper divisors (4812339).

5638605 is a wasteful number, since it uses less digits than its factorization.

5638605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 5638605 is about 2374.5746987619. The cubic root of 5638605 is about 177.9879321028.

The spelling of 5638605 in words is "five million, six hundred thirty-eight thousand, six hundred five".