5806 has 4 divisors (see below), whose sum is σ = 8712.
Its totient is φ = 2902.
The previous prime is 5801. The next prime is 5807. The reversal of 5806 is 6085.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6085 = 5 ⋅1217.
It is a plaindrome in base 16.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (5801) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1450 + ... + 1453.
It is an arithmetic number, because the mean of its divisors is an integer number (2178).
5806 is a deficient number, since it is larger than the sum of its proper divisors (2906).
5806 is a wasteful number, since it uses less digits than its factorization.
5806 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2905.
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 5806 is about 76.1971128062.
The cubic root of 5806 is about 17.9732111796.
The spelling of 5806 in words is "five thousand, eight hundred six".