9749231 has 2 divisors, whose sum is σ = 9749232. Its totient is φ = 9749230.

The previous prime is 9749197. The next prime is 9749239. The reversal of 9749231 is 1329479.

It is a strong prime.

It is an emirp because it is prime and its reverse (1329479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9749231 - 2¹⁸ = 9487087 is a prime.

It is a super-2 number, since 2×9749231² = 190095010182722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9749191 and 9749200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9749239) 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, 4874615 + 4874616.

It is an arithmetic number, because the mean of its divisors is an integer number (4874616).

Almost surely, 2^9749231 is an apocalyptic number.

9749231 is a deficient number, since it is larger than the sum of its proper divisors (1).

9749231 is an equidigital number, since it uses as much as digits as its factorization.

9749231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 9749231 is about 3122.3758582208. The cubic root of 9749231 is about 213.6273173996.

The spelling of 9749231 in words is "nine million, seven hundred forty-nine thousand, two hundred thirty-one".