5631659 has 16 divisors (see below), whose sum is σ = 6418656. Its totient is φ = 4896000.

The previous prime is 5631629. The next prime is 5631671. The reversal of 5631659 is 9561365.

It is a cyclic number.

It is not a de Polignac number, because 5631659 - 2²⁰ = 4583083 is a prime.

It is a Duffinian number.

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 (5631629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41039 + ... + 41175.

It is an arithmetic number, because the mean of its divisors is an integer number (401166).

Almost surely, 2^5631659 is an apocalyptic number.

5631659 is a deficient number, since it is larger than the sum of its proper divisors (786997).

5631659 is a wasteful number, since it uses less digits than its factorization.

5631659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286.

The product of its digits is 24300, while the sum is 35.

The square root of 5631659 is about 2373.1116703602. Note that the first 3 decimals coincide. The cubic root of 5631659 is about 177.9148163719.

It can be divided in two parts, 563 and 1659, that added together give a palindrome (2222).

The spelling of 5631659 in words is "five million, six hundred thirty-one thousand, six hundred fifty-nine".