9983231 has 2 divisors, whose sum is σ = 9983232. Its totient is φ = 9983230.

The previous prime is 9983203. The next prime is 9983243. The reversal of 9983231 is 1323899.

It is a strong prime.

It is an emirp because it is prime and its reverse (1323899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9983231 - 2¹⁸ = 9721087 is a prime.

It is a super-2 number, since 2×9983231² = 199329802398722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9983191 and 9983200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9983251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4991615 + 4991616.

It is an arithmetic number, because the mean of its divisors is an integer number (4991616).

Almost surely, 2^9983231 is an apocalyptic number.

9983231 is a deficient number, since it is larger than the sum of its proper divisors (1).

9983231 is an equidigital number, since it uses as much as digits as its factorization.

9983231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 35.

The square root of 9983231 is about 3159.6251359932. The cubic root of 9983231 is about 215.3229759087.

The spelling of 9983231 in words is "nine million, nine hundred eighty-three thousand, two hundred thirty-one".