398341 has 2 divisors, whose sum is σ = 398342. Its totient is φ = 398340.

The previous prime is 398339. The next prime is 398347. The reversal of 398341 is 143893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324900 + 73441 = 570^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 398341 - 2¹ = 398339 is a prime.

Together with 398339, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199170 + 199171.

It is an arithmetic number, because the mean of its divisors is an integer number (199171).

2³⁹⁸³⁴¹ is an apocalyptic number.

It is an amenable number.

398341 is a deficient number, since it is larger than the sum of its proper divisors (1).

398341 is an equidigital number, since it uses as much as digits as its factorization.

398341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 398341 is about 631.1426146284. The cubic root of 398341 is about 73.5786253502.

The spelling of 398341 in words is "three hundred ninety-eight thousand, three hundred forty-one".