8242847 has 2 divisors, whose sum is σ = 8242848. Its totient is φ = 8242846.

The previous prime is 8242811. The next prime is 8242849. The reversal of 8242847 is 7482428.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8242847 - 2⁶ = 8242783 is a prime.

Together with 8242849, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8242849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4121423 + 4121424.

It is an arithmetic number, because the mean of its divisors is an integer number (4121424).

Almost surely, 2^8242847 is an apocalyptic number.

8242847 is a deficient number, since it is larger than the sum of its proper divisors (1).

8242847 is an equidigital number, since it uses as much as digits as its factorization.

8242847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28672, while the sum is 35.

The square root of 8242847 is about 2871.0358757772. The cubic root of 8242847 is about 202.0035861860.

The spelling of 8242847 in words is "eight million, two hundred forty-two thousand, eight hundred forty-seven".