478784 has 14 divisors (see below), whose sum is σ = 950214. Its totient is φ = 239360.

The previous prime is 478769. The next prime is 478787. The reversal of 478784 is 487874.

It can be written as a sum of positive squares in only one way, i.e., 462400 + 16384 = 680^2 + 128^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478784.

It is not an unprimeable number, because it can be changed into a prime (478787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3677 + ... + 3804.

2⁴⁷⁸⁷⁸⁴ is an apocalyptic number.

It is an amenable number.

478784 is a deficient number, since it is larger than the sum of its proper divisors (471430).

478784 is an equidigital number, since it uses as much as digits as its factorization.

478784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7493 (or 7483 counting only the distinct ones).

The product of its digits is 50176, while the sum is 38.

The square root of 478784 is about 691.9421941174. The cubic root of 478784 is about 78.2311791473.

The spelling of 478784 in words is "four hundred seventy-eight thousand, seven hundred eighty-four".