9998031 has 8 divisors (see below), whose sum is σ = 13910400. Its totient is φ = 6375512.

The previous prime is 9998017. The next prime is 9998033. The reversal of 9998031 is 1308999.

9998031 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9998031 - 2¹⁰ = 9997007 is a prime.

It is a super-2 number, since 2×9998031² = 199921247753922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998033) 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, 72381 + ... + 72518.

It is an arithmetic number, because the mean of its divisors is an integer number (1738800).

Almost surely, 2^9998031 is an apocalyptic number.

9998031 is a deficient number, since it is larger than the sum of its proper divisors (3912369).

9998031 is a wasteful number, since it uses less digits than its factorization.

9998031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144925.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 9998031 is about 3161.9663186062. The cubic root of 9998031 is about 215.4293278020.

The spelling of 9998031 in words is "nine million, nine hundred ninety-eight thousand, thirty-one".