998133 has 4 divisors (see below), whose sum is σ = 1330848. Its totient is φ = 665420.

The previous prime is 998117. The next prime is 998147. The reversal of 998133 is 331899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 998133 - 2⁴ = 998117 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 998094 and 998103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998633) 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, 166353 + ... + 166358.

It is an arithmetic number, because the mean of its divisors is an integer number (332712).

2⁹⁹⁸¹³³ is an apocalyptic number.

It is an amenable number.

998133 is a deficient number, since it is larger than the sum of its proper divisors (332715).

998133 is a wasteful number, since it uses less digits than its factorization.

998133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332714.

The product of its digits is 5832, while the sum is 33.

The square root of 998133 is about 999.0660638817. The cubic root of 998133 is about 99.9377278966.

The spelling of 998133 in words is "nine hundred ninety-eight thousand, one hundred thirty-three".