8422571 has 2 divisors, whose sum is σ = 8422572. Its totient is φ = 8422570.

The previous prime is 8422559. The next prime is 8422573. The reversal of 8422571 is 1752248.

8422571 is nontrivially palindromic in base 13.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8422571 - 2¹⁰ = 8421547 is a prime.

Together with 8422573, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8422573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4211285 + 4211286.

It is an arithmetic number, because the mean of its divisors is an integer number (4211286).

Almost surely, 2^8422571 is an apocalyptic number.

8422571 is a deficient number, since it is larger than the sum of its proper divisors (1).

8422571 is an equidigital number, since it uses as much as digits as its factorization.

8422571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 29.

The square root of 8422571 is about 2902.1666044526. The cubic root of 8422571 is about 203.4611806093.

The spelling of 8422571 in words is "eight million, four hundred twenty-two thousand, five hundred seventy-one".