478984 has 16 divisors (see below), whose sum is σ = 979920. Its totient is φ = 217680.

The previous prime is 478967. The next prime is 478991. The reversal of 478984 is 489874.

It is an unprimeable number.

478984 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, 2634 + ... + 2809.

It is an arithmetic number, because the mean of its divisors is an integer number (61245).

2⁴⁷⁸⁹⁸⁴ is an apocalyptic number.

478984 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

478984 is an abundant number, since it is smaller than the sum of its proper divisors (500936).

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

478984 is a wasteful number, since it uses less digits than its factorization.

478984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460 (or 5456 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 478984 is about 692.0866997711. The cubic root of 478984 is about 78.2420706681.

The spelling of 478984 in words is "four hundred seventy-eight thousand, nine hundred eighty-four".