47994 has 16 divisors (see below), whose sum is σ = 101280. Its totient is φ = 15120.

The previous prime is 47981. The next prime is 48017. The reversal of 47994 is 49974.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97 + ... + 324.

It is an arithmetic number, because the mean of its divisors is an integer number (6330).

2⁴⁷⁹⁹⁴ is an apocalyptic number.

47994 is an abundant number, since it is smaller than the sum of its proper divisors (53286).

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 (50640).

47994 is a wasteful number, since it uses less digits than its factorization.

47994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445.

The product of its digits is 9072, while the sum is 33.

The square root of 47994 is about 219.0753295102. The cubic root of 47994 is about 36.3408975264.

Subtracting from 47994 its sum of digits (33), we obtain a square (47961 = 219²).

The spelling of 47994 in words is "forty-seven thousand, nine hundred ninety-four".