478585 has 4 divisors (see below), whose sum is σ = 574308. Its totient is φ = 382864.

The previous prime is 478579. The next prime is 478589. The reversal of 478585 is 585874.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82944 + 395641 = 288^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 478585 - 2¹⁷ = 347513 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47854 + ... + 47863.

It is an arithmetic number, because the mean of its divisors is an integer number (143577).

2⁴⁷⁸⁵⁸⁵ is an apocalyptic number.

It is an amenable number.

478585 is a deficient number, since it is larger than the sum of its proper divisors (95723).

478585 is an equidigital number, since it uses as much as digits as its factorization.

478585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95722.

The product of its digits is 44800, while the sum is 37.

The square root of 478585 is about 691.7983810331. The cubic root of 478585 is about 78.2203390732.

The spelling of 478585 in words is "four hundred seventy-eight thousand, five hundred eighty-five".