478481 has 2 divisors, whose sum is σ = 478482. Its totient is φ = 478480.

The previous prime is 478459. The next prime is 478483. The reversal of 478481 is 184874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 410881 + 67600 = 641^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 478481 - 2⁶ = 478417 is a prime.

It is a super-2 number, since 2×478481² = 457888134722, which contains 22 as substring.

Together with 478483, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478481.

It is not a weakly prime, because it can be changed into another prime (478483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239240 + 239241.

It is an arithmetic number, because the mean of its divisors is an integer number (239241).

2⁴⁷⁸⁴⁸¹ is an apocalyptic number.

It is an amenable number.

478481 is a deficient number, since it is larger than the sum of its proper divisors (1).

478481 is an equidigital number, since it uses as much as digits as its factorization.

478481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 32.

The square root of 478481 is about 691.7232105402. The cubic root of 478481 is about 78.2146727133.

It can be divided in two parts, 478 and 481, that added together give a palindrome (959).

The spelling of 478481 in words is "four hundred seventy-eight thousand, four hundred eighty-one".