398943 has 12 divisors (see below), whose sum is σ = 606840. Its totient is φ = 251856.

The previous prime is 398941. The next prime is 398969. The reversal of 398943 is 349893.

398943 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 398943 - 2¹ = 398941 is a prime.

398943 is strictly pandigital in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 398898 and 398907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 996 + ... + 1337.

It is an arithmetic number, because the mean of its divisors is an integer number (50570).

2³⁹⁸⁹⁴³ is an apocalyptic number.

398943 is a deficient number, since it is larger than the sum of its proper divisors (207897).

398943 is a wasteful number, since it uses less digits than its factorization.

398943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358 (or 2355 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 398943 is about 631.6193473921. The cubic root of 398943 is about 73.6156723674.

The spelling of 398943 in words is "three hundred ninety-eight thousand, nine hundred forty-three".