398339 has 2 divisors, whose sum is σ = 398340. Its totient is φ = 398338.

The previous prime is 398323. The next prime is 398341. The reversal of 398339 is 933893.

It is a strong prime.

It is an emirp because it is prime and its reverse (933893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 398339 - 2⁴ = 398323 is a prime.

Together with 398341, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 398299 and 398308.

It is not a weakly prime, because it can be changed into another prime (398369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199169 + 199170.

It is an arithmetic number, because the mean of its divisors is an integer number (199170).

2³⁹⁸³³⁹ is an apocalyptic number.

398339 is a deficient number, since it is larger than the sum of its proper divisors (1).

398339 is an equidigital number, since it uses as much as digits as its factorization.

398339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 35.

The square root of 398339 is about 631.1410301985. The cubic root of 398339 is about 73.5785022083.

It can be divided in two parts, 398 and 339, that added together give a palindrome (737).

The spelling of 398339 in words is "three hundred ninety-eight thousand, three hundred thirty-nine".