17994 has 8 divisors (see below), whose sum is σ = 36000. Its totient is φ = 5996.

The previous prime is 17989. The next prime is 18013. The reversal of 17994 is 49971.

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

17994 is an admirable number.

It is a d-powerful number, because it can be written as 1 + 7⁵ + 9² + 9² + 4⁵ .

It is a plaindrome in base 11.

It is an unprimeable number.

17994 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, 1494 + ... + 1505.

It is an arithmetic number, because the mean of its divisors is an integer number (4500).

2¹⁷⁹⁹⁴ is an apocalyptic number.

17994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18000).

17994 is a wasteful number, since it uses less digits than its factorization.

17994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004.

The product of its digits is 2268, while the sum is 30.

The square root of 17994 is about 134.1417161065. The cubic root of 17994 is about 26.2045016836.

The spelling of 17994 in words is "seventeen thousand, nine hundred ninety-four".