398968 has 8 divisors (see below), whose sum is σ = 748080. Its totient is φ = 199480.

The previous prime is 398941. The next prime is 398969. The reversal of 398968 is 869893.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24928 + ... + 24943.

It is an arithmetic number, because the mean of its divisors is an integer number (93510).

2³⁹⁸⁹⁶⁸ is an apocalyptic number.

It is an amenable number.

398968 is a deficient number, since it is larger than the sum of its proper divisors (349112).

398968 is a wasteful number, since it uses less digits than its factorization.

398968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49877 (or 49873 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 398968 is about 631.6391374828. The cubic root of 398968 is about 73.6172100586.

The spelling of 398968 in words is "three hundred ninety-eight thousand, nine hundred sixty-eight".