8221267 has 2 divisors, whose sum is σ = 8221268. Its totient is φ = 8221266.

The previous prime is 8221261. The next prime is 8221273. The reversal of 8221267 is 7621228.

It is a balanced prime because it is at equal distance from previous prime (8221261) and next prime (8221273).

It is a cyclic number.

It is not a de Polignac number, because 8221267 - 2⁷ = 8221139 is a prime.

It is not a weakly prime, because it can be changed into another prime (8221261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4110633 + 4110634.

It is an arithmetic number, because the mean of its divisors is an integer number (4110634).

Almost surely, 2^8221267 is an apocalyptic number.

8221267 is a deficient number, since it is larger than the sum of its proper divisors (1).

8221267 is an equidigital number, since it uses as much as digits as its factorization.

8221267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 28.

The square root of 8221267 is about 2867.2751873512. The cubic root of 8221267 is about 201.8271484765.

The spelling of 8221267 in words is "eight million, two hundred twenty-one thousand, two hundred sixty-seven".