478563 has 4 divisors (see below), whose sum is σ = 638088. Its totient is φ = 319040.

The previous prime is 478531. The next prime is 478571. The reversal of 478563 is 365874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 478563 - 2⁵ = 478531 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (478523) 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 3 ways as a sum of consecutive naturals, for example, 79758 + ... + 79763.

It is an arithmetic number, because the mean of its divisors is an integer number (159522).

2⁴⁷⁸⁵⁶³ is an apocalyptic number.

478563 is a deficient number, since it is larger than the sum of its proper divisors (159525).

478563 is a wasteful number, since it uses less digits than its factorization.

478563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159524.

The product of its digits is 20160, while the sum is 33.

The square root of 478563 is about 691.7824802638. The cubic root of 478563 is about 78.2191404886.

Subtracting from 478563 its product of digits (20160), we obtain a triangular number (458403 = T₉₅₇).

The spelling of 478563 in words is "four hundred seventy-eight thousand, five hundred sixty-three".