8222447 has 2 divisors, whose sum is σ = 8222448. Its totient is φ = 8222446.

The previous prime is 8222437. The next prime is 8222449. The reversal of 8222447 is 7442228.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8222447 - 2¹² = 8218351 is a prime.

Together with 8222449, 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 (8222449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4111223 + 4111224.

It is an arithmetic number, because the mean of its divisors is an integer number (4111224).

Almost surely, 2^8222447 is an apocalyptic number.

8222447 is a deficient number, since it is larger than the sum of its proper divisors (1).

8222447 is an equidigital number, since it uses as much as digits as its factorization.

8222447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 29.

The square root of 8222447 is about 2867.4809502419. The cubic root of 8222447 is about 201.8368041108.

The spelling of 8222447 in words is "eight million, two hundred twenty-two thousand, four hundred forty-seven".