5997 has 4 divisors (see below), whose sum is σ = 8000. Its totient is φ = 3996.

The previous prime is 5987. The next prime is 6007. The reversal of 5997 is 7995.

5997 = 9² + 10² + ... + 26².

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (5987) and next prime (6007).

It is not a de Polignac number, because 5997 - 2⁴ = 5981 is a prime.

It is a D-number.

It is a Duffinian number.

5997 is a lucky number.

It is a plaindrome in base 8 and base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997 + ... + 1002.

It is an arithmetic number, because the mean of its divisors is an integer number (2000).

It is an amenable number.

5997 is a deficient number, since it is larger than the sum of its proper divisors (2003).

5997 is a wasteful number, since it uses less digits than its factorization.

5997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002.

The product of its digits is 2835, while the sum is 30.

The square root of 5997 is about 77.4402995862. The cubic root of 5997 is about 18.1681768891.

It can be divided in two parts, 599 and 7, that added together give a palindrome (606).

The spelling of 5997 in words is "five thousand, nine hundred ninety-seven".