9998235 has 56 divisors (see below), whose sum is σ = 19464144. Its totient is φ = 4898880.

The previous prime is 9998207. The next prime is 9998239. The reversal of 9998235 is 5328999.

It is not a de Polignac number, because 9998235 - 2⁵ = 9998203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

9998235 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998239) 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 55 ways as a sum of consecutive naturals, for example, 47280 + ... + 47490.

It is an arithmetic number, because the mean of its divisors is an integer number (347574).

Almost surely, 2^9998235 is an apocalyptic number.

9998235 is a deficient number, since it is larger than the sum of its proper divisors (9465909).

9998235 is a wasteful number, since it uses less digits than its factorization.

9998235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 232 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 9998235 is about 3161.9985768498. The cubic root of 9998235 is about 215.4307930000.

The spelling of 9998235 in words is "nine million, nine hundred ninety-eight thousand, two hundred thirty-five".