998195 has 8 divisors (see below), whose sum is σ = 1306800. Its totient is φ = 725920.

The previous prime is 998167. The next prime is 998197. The reversal of 998195 is 591899.

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

It is not a de Polignac number, because 998195 - 2¹⁴ = 981811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (998197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9020 + ... + 9129.

It is an arithmetic number, because the mean of its divisors is an integer number (163350).

2⁹⁹⁸¹⁹⁵ is an apocalyptic number.

998195 is a deficient number, since it is larger than the sum of its proper divisors (308605).

998195 is a wasteful number, since it uses less digits than its factorization.

998195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18165.

The product of its digits is 29160, while the sum is 41.

The square root of 998195 is about 999.0970923789. The cubic root of 998195 is about 99.9397970967.

The spelling of 998195 in words is "nine hundred ninety-eight thousand, one hundred ninety-five".