478009 has 8 divisors (see below), whose sum is σ = 570240. Its totient is φ = 391776.

The previous prime is 478001. The next prime is 478039. The reversal of 478009 is 900874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 478009 - 2³ = 478001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478001) 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 7 ways as a sum of consecutive naturals, for example, 1324 + ... + 1645.

It is an arithmetic number, because the mean of its divisors is an integer number (71280).

2⁴⁷⁸⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

478009 is a deficient number, since it is larger than the sum of its proper divisors (92231).

478009 is a wasteful number, since it uses less digits than its factorization.

478009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 478009 is about 691.3819494317. The cubic root of 478009 is about 78.1889458323.

The spelling of 478009 in words is "four hundred seventy-eight thousand, nine".