398946 has 8 divisors (see below), whose sum is σ = 797904. Its totient is φ = 132980.

The previous prime is 398941. The next prime is 398969. The reversal of 398946 is 649893.

It is a sphenic number, since it is the product of 3 distinct primes.

398946 is an admirable number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33240 + ... + 33251.

It is an arithmetic number, because the mean of its divisors is an integer number (99738).

2³⁹⁸⁹⁴⁶ is an apocalyptic number.

398946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398946 is a wasteful number, since it uses less digits than its factorization.

398946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66496.

The product of its digits is 46656, while the sum is 39.

The square root of 398946 is about 631.6217222357. The cubic root of 398946 is about 73.6158568938.

The spelling of 398946 in words is "three hundred ninety-eight thousand, nine hundred forty-six".