8455243 has 2 divisors, whose sum is σ = 8455244. Its totient is φ = 8455242.

The previous prime is 8455241. The next prime is 8455259. The reversal of 8455243 is 3425548.

8455243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8455243 - 2¹ = 8455241 is a prime.

It is a super-2 number, since 2×8455243² = 142982268378098, which contains 22 as substring.

Together with 8455241, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 8² + 4⁴ + 5² + 5² + 2²³ + 4⁸ + 3⁶ .

It is not a weakly prime, because it can be changed into another prime (8455241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4227621 + 4227622.

It is an arithmetic number, because the mean of its divisors is an integer number (4227622).

Almost surely, 2^8455243 is an apocalyptic number.

8455243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8455243 is an equidigital number, since it uses as much as digits as its factorization.

8455243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 31.

The square root of 8455243 is about 2907.7900543196. The cubic root of 8455243 is about 203.7239232940.

The spelling of 8455243 in words is "eight million, four hundred fifty-five thousand, two hundred forty-three".