9800031 has 12 divisors (see below), whose sum is σ = 13269768. Its totient is φ = 6433344.

The previous prime is 9800027. The next prime is 9800053. The reversal of 9800031 is 1300089.

It is not a de Polignac number, because 9800031 - 2² = 9800027 is a prime.

It is a super-2 number, since 2×9800031² = 192081215201922, which contains 22 as substring.

It is the 3131-st Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 9799980 and 9800007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9800731) by changing a digit.

It is a nontrivial repunit in base 3130.

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 11 ways as a sum of consecutive naturals, for example, 15681 + ... + 16293.

It is an arithmetic number, because the mean of its divisors is an integer number (1105814).

Almost surely, 2^9800031 is an apocalyptic number.

9800031 is a deficient number, since it is larger than the sum of its proper divisors (3469737).

9800031 is an equidigital number, since it uses as much as digits as its factorization.

9800031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 9800031 is about 3130.5001197892. The cubic root of 9800031 is about 213.9977217564.

The spelling of 9800031 in words is "nine million, eight hundred thousand, thirty-one".