478955 has 4 divisors (see below), whose sum is σ = 574752. Its totient is φ = 383160.

The previous prime is 478943. The next prime is 478963. The reversal of 478955 is 559874.

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

It is not a de Polignac number, because 478955 - 2¹⁴ = 462571 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478955.

It is an unprimeable number.

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, 47891 + ... + 47900.

It is an arithmetic number, because the mean of its divisors is an integer number (143688).

2⁴⁷⁸⁹⁵⁵ is an apocalyptic number.

478955 is a deficient number, since it is larger than the sum of its proper divisors (95797).

478955 is an equidigital number, since it uses as much as digits as its factorization.

478955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95796.

The product of its digits is 50400, while the sum is 38.

The square root of 478955 is about 692.0657483216. The cubic root of 478955 is about 78.2404915855.

It can be divided in two parts, 478 and 955, that multiplied together give a triangular number (456490 = T₉₅₅).

The spelling of 478955 in words is "four hundred seventy-eight thousand, nine hundred fifty-five".