6998 has 4 divisors (see below), whose sum is σ = 10500. Its totient is φ = 3498.

The previous prime is 6997. The next prime is 7001. The reversal of 6998 is 8996.

It is a happy number.

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

It is a Curzon number.

It is a plaindrome in base 14.

It is a nialpdrome in base 6.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 6998.

It is not an unprimeable number, because it can be changed into a prime (6991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1748 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (2625).

2⁶⁹⁹⁸ is an apocalyptic number.

6998 is a deficient number, since it is larger than the sum of its proper divisors (3502).

6998 is a wasteful number, since it uses less digits than its factorization.

6998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501.

The product of its digits is 3888, while the sum is 32.

The square root of 6998 is about 83.6540495135. The cubic root of 6998 is about 19.1274898150.

It can be divided in two parts, 699 and 8, that added together give a palindrome (707).

The spelling of 6998 in words is "six thousand, nine hundred ninety-eight".