8005243 has 2 divisors, whose sum is σ = 8005244. Its totient is φ = 8005242.

The previous prime is 8005241. The next prime is 8005271. The reversal of 8005243 is 3425008.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8005243 - 2¹ = 8005241 is a prime.

Together with 8005241, it forms a pair of twin primes.

It is an Ulam number.

8005243 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8005241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4002621 + 4002622.

It is an arithmetic number, because the mean of its divisors is an integer number (4002622).

Almost surely, 2^8005243 is an apocalyptic number.

8005243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8005243 is an equidigital number, since it uses as much as digits as its factorization.

8005243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 8005243 is about 2829.3538131524. The cubic root of 8005243 is about 200.0436821253.

The spelling of 8005243 in words is "eight million, five thousand, two hundred forty-three".