5669 has 2 divisors, whose sum is σ = 5670.
Its totient is φ = 5668.
The previous prime is 5659. The next prime is 5683. The reversal of 5669 is 9665.
5669 is nontrivially palindromic in base 4.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 4225 + 1444 = 65^2 + 38^2
It is a cyclic number.
It is not a de Polignac number, because 5669 - 24 = 5653 is a prime.
It is a super-2 number, since 2×56692 = 64275122, which contains 22 as substring.
It is a Chen prime.
It is a plaindrome in base 7, base 10 and base 12.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (5639) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2834 + 2835.
It is an arithmetic number, because the mean of its divisors is an integer number (2835).
25669 is an apocalyptic number.
It is an amenable number.
5669 is a deficient number, since it is larger than the sum of its proper divisors (1).
5669 is an equidigital number, since it uses as much as digits as its factorization.
5669 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1620, while the sum is 26.
The square root of 5669 is about 75.2927619363.
The cubic root of 5669 is about 17.8307174859.
It can be divided in two parts, 566 and 9, that added together give a palindrome (575).
The spelling of 5669 in words is "five thousand, six hundred sixty-nine".