6698 has 8 divisors (see below), whose sum is σ = 10692. Its totient is φ = 3136.

The previous prime is 6691. The next prime is 6701. The reversal of 6698 is 8966.

It can be written as a sum of positive squares in 2 ways, for example, as 5329 + 1369 = 73^2 + 37^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

6698 is an undulating number in base 14.

Its product of digits (2592) is a multiple of the sum of its prime divisors (216).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6698.

It is not an unprimeable number, because it can be changed into a prime (6691) by changing a digit.

6698 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65 + ... + 132.

2⁶⁶⁹⁸ is an apocalyptic number.

6698 is a deficient number, since it is larger than the sum of its proper divisors (3994).

6698 is a wasteful number, since it uses less digits than its factorization.

6698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216.

The product of its digits is 2592, while the sum is 29.

The square root of 6698 is about 81.8413098624. The cubic root of 6698 is about 18.8501602990.

The spelling of 6698 in words is "six thousand, six hundred ninety-eight".