478903 has 4 divisors (see below), whose sum is σ = 487080. Its totient is φ = 470728.

The previous prime is 478901. The next prime is 478913. The reversal of 478903 is 309874.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309874 = 2 ⋅154937.

It is a cyclic number.

It is not a de Polignac number, because 478903 - 2¹ = 478901 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4000 + ... + 4117.

It is an arithmetic number, because the mean of its divisors is an integer number (121770).

2⁴⁷⁸⁹⁰³ is an apocalyptic number.

478903 is a deficient number, since it is larger than the sum of its proper divisors (8177).

478903 is an equidigital number, since it uses as much as digits as its factorization.

478903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8176.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 478903 is about 692.0281786170. The cubic root of 478903 is about 78.2376599675.

The spelling of 478903 in words is "four hundred seventy-eight thousand, nine hundred three".