478289 has 12 divisors (see below), whose sum is σ = 571824. Its totient is φ = 398664.

The previous prime is 478273. The next prime is 478321. The reversal of 478289 is 982874.

It is not a de Polignac number, because 478289 - 2⁴ = 478273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1994 + ... + 2220.

It is an arithmetic number, because the mean of its divisors is an integer number (47652).

2⁴⁷⁸²⁸⁹ is an apocalyptic number.

478289 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

478289 is a deficient number, since it is larger than the sum of its proper divisors (93535).

478289 is a wasteful number, since it uses less digits than its factorization.

478289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 277 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 478289 is about 691.5844127798. The cubic root of 478289 is about 78.2042095836.

It can be divided in two parts, 478 and 289, that added together give a palindrome (767).

The spelling of 478289 in words is "four hundred seventy-eight thousand, two hundred eighty-nine".