9689231 has 2 divisors, whose sum is σ = 9689232. Its totient is φ = 9689230.

The previous prime is 9689213. The next prime is 9689237. The reversal of 9689231 is 1329869.

Together with previous prime (9689213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9689231 is a prime.

It is a super-2 number, since 2×9689231² = 187762394742722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9689237) 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 as a sum of consecutive naturals, namely, 4844615 + 4844616.

It is an arithmetic number, because the mean of its divisors is an integer number (4844616).

Almost surely, 2^9689231 is an apocalyptic number.

9689231 is a deficient number, since it is larger than the sum of its proper divisors (1).

9689231 is an equidigital number, since it uses as much as digits as its factorization.

9689231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 9689231 is about 3112.7529616081. The cubic root of 9689231 is about 213.1881708322.

The spelling of 9689231 in words is "nine million, six hundred eighty-nine thousand, two hundred thirty-one".