8971243 has 2 divisors, whose sum is σ = 8971244. Its totient is φ = 8971242.

The previous prime is 8971241. The next prime is 8971271. The reversal of 8971243 is 3421798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8971243 - 2¹ = 8971241 is a prime.

Together with 8971241, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 8971199 and 8971208.

It is not a weakly prime, because it can be changed into another prime (8971241) 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, 4485621 + 4485622.

It is an arithmetic number, because the mean of its divisors is an integer number (4485622).

Almost surely, 2^8971243 is an apocalyptic number.

8971243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8971243 is an equidigital number, since it uses as much as digits as its factorization.

8971243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 8971243 is about 2995.2033319960. The cubic root of 8971243 is about 207.7866015891.

The spelling of 8971243 in words is "eight million, nine hundred seventy-one thousand, two hundred forty-three".