8689243 has 2 divisors, whose sum is σ = 8689244. Its totient is φ = 8689242.

The previous prime is 8689223. The next prime is 8689249. The reversal of 8689243 is 3429868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8689243 - 2¹⁷ = 8558171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8689196 and 8689205.

It is not a weakly prime, because it can be changed into another prime (8689249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4344621 + 4344622.

It is an arithmetic number, because the mean of its divisors is an integer number (4344622).

Almost surely, 2^8689243 is an apocalyptic number.

8689243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8689243 is an equidigital number, since it uses as much as digits as its factorization.

8689243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 8689243 is about 2947.7521944695. The cubic root of 8689243 is about 205.5862102593.

The spelling of 8689243 in words is "eight million, six hundred eighty-nine thousand, two hundred forty-three".