398459 has 2 divisors, whose sum is σ = 398460. Its totient is φ = 398458.

The previous prime is 398441. The next prime is 398467. The reversal of 398459 is 954893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 398459 - 2¹² = 394363 is a prime.

It is a Chen prime.

It is a nialpdrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398459.

It is not a weakly prime, because it can be changed into another prime (398059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199229 + 199230.

It is an arithmetic number, because the mean of its divisors is an integer number (199230).

2³⁹⁸⁴⁵⁹ is an apocalyptic number.

398459 is a deficient number, since it is larger than the sum of its proper divisors (1).

398459 is an equidigital number, since it uses as much as digits as its factorization.

398459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 38.

The square root of 398459 is about 631.2360889556. The cubic root of 398459 is about 73.5858899975.

The spelling of 398459 in words is "three hundred ninety-eight thousand, four hundred fifty-nine".