5998 has 4 divisors (see below), whose sum is σ = 9000. Its totient is φ = 2998.

The previous prime is 5987. The next prime is 6007. The reversal of 5998 is 8995.

5998 is nontrivially palindromic in base 6.

5998 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

5998 is an undulating number in base 6.

It is a plaindrome in base 8 and base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1498 + ... + 1501.

It is an arithmetic number, because the mean of its divisors is an integer number (2250).

2⁵⁹⁹⁸ is an apocalyptic number.

5998 is a deficient number, since it is larger than the sum of its proper divisors (3002).

5998 is a wasteful number, since it uses less digits than its factorization.

5998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001.

The product of its digits is 3240, while the sum is 31.

The square root of 5998 is about 77.4467559037. The cubic root of 5998 is about 18.1691866811.

The spelling of 5998 in words is "five thousand, nine hundred ninety-eight".