478303 has 4 divisors (see below), whose sum is σ = 546640. Its totient is φ = 409968.

The previous prime is 478273. The next prime is 478321. The reversal of 478303 is 303874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303874 = 2 ⋅151937.

It is a cyclic number.

It is not a de Polignac number, because 478303 - 2⁵ = 478271 is a prime.

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

It is a Duffinian number.

478303 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478343) 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, 34158 + ... + 34171.

It is an arithmetic number, because the mean of its divisors is an integer number (136660).

2⁴⁷⁸³⁰³ is an apocalyptic number.

478303 is a deficient number, since it is larger than the sum of its proper divisors (68337).

478303 is an equidigital number, since it uses as much as digits as its factorization.

478303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68336.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 478303 is about 691.5945343914. The cubic root of 478303 is about 78.2049726148.

The spelling of 478303 in words is "four hundred seventy-eight thousand, three hundred three".