998394 has 8 divisors (see below), whose sum is σ = 1996800. Its totient is φ = 332796.

The previous prime is 998381. The next prime is 998399. The reversal of 998394 is 493899.

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

998394 is an admirable number.

It is a nialpdrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (998399) by changing a digit.

998394 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83194 + ... + 83205.

It is an arithmetic number, because the mean of its divisors is an integer number (249600).

2⁹⁹⁸³⁹⁴ is an apocalyptic number.

998394 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.

998394 is a wasteful number, since it uses less digits than its factorization.

998394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166404.

The product of its digits is 69984, while the sum is 42.

The square root of 998394 is about 999.1966773363. The cubic root of 998394 is about 99.9464379829.

The spelling of 998394 in words is "nine hundred ninety-eight thousand, three hundred ninety-four".