398982341 has 2 divisors, whose sum is σ = 398982342. Its totient is φ = 398982340.

The previous prime is 398982329. The next prime is 398982343. The reversal of 398982341 is 143289893.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320589025 + 78393316 = 17905^2 + 8854^2 .

It is an emirp because it is prime and its reverse (143289893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 398982341 - 2¹⁸ = 398720197 is a prime.

Together with 398982343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398982343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199491170 + 199491171.

It is an arithmetic number, because the mean of its divisors is an integer number (199491171).

Almost surely, 2^398982341 is an apocalyptic number.

It is an amenable number.

398982341 is a deficient number, since it is larger than the sum of its proper divisors (1).

398982341 is an equidigital number, since it uses as much as digits as its factorization.

398982341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 398982341 is about 19974.5423226666. The cubic root of 398982341 is about 736.1809211076.

The spelling of 398982341 in words is "three hundred ninety-eight million, nine hundred eighty-two thousand, three hundred forty-one".