478241 has 2 divisors, whose sum is σ = 478242. Its totient is φ = 478240.

The previous prime is 478213. The next prime is 478243. The reversal of 478241 is 142874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390625 + 87616 = 625^2 + 296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478241 is a prime.

Together with 478243, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478241.

It is not a weakly prime, because it can be changed into another prime (478243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239120 + 239121.

It is an arithmetic number, because the mean of its divisors is an integer number (239121).

2⁴⁷⁸²⁴¹ is an apocalyptic number.

It is an amenable number.

478241 is a deficient number, since it is larger than the sum of its proper divisors (1).

478241 is an equidigital number, since it uses as much as digits as its factorization.

478241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 26.

The square root of 478241 is about 691.5497089870. The cubic root of 478241 is about 78.2015933637.

The spelling of 478241 in words is "four hundred seventy-eight thousand, two hundred forty-one".