8413243 has 2 divisors, whose sum is σ = 8413244. Its totient is φ = 8413242.

The previous prime is 8413211. The next prime is 8413247. The reversal of 8413243 is 3423148.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8413243 - 2⁵ = 8413211 is a prime.

8413243 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8413247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4206621 + 4206622.

It is an arithmetic number, because the mean of its divisors is an integer number (4206622).

Almost surely, 2^8413243 is an apocalyptic number.

8413243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8413243 is an equidigital number, since it uses as much as digits as its factorization.

8413243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 8413243 is about 2900.5590840388. The cubic root of 8413243 is about 203.3860417568.

The spelling of 8413243 in words is "eight million, four hundred thirteen thousand, two hundred forty-three".