447984 has 80 divisors (see below), whose sum is σ = 1383840. Its totient is φ = 138240.

The previous prime is 447983. The next prime is 447991. The reversal of 447984 is 489744.

447984 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 447984.

It is not an unprimeable number, because it can be changed into a prime (447983) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7314 + ... + 7374.

It is an arithmetic number, because the mean of its divisors is an integer number (17298).

2⁴⁴⁷⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691920).

447984 is an abundant number, since it is smaller than the sum of its proper divisors (935856).

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

447984 is a wasteful number, since it uses less digits than its factorization.

447984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 83 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 447984 is about 669.3160688344. The cubic root of 447984 is about 76.5163363804.

It can be divided in two parts, 447 and 984, that added together give a triangular number (1431 = T₅₃).

The spelling of 447984 in words is "four hundred forty-seven thousand, nine hundred eighty-four".