8222971 has 4 divisors (see below), whose sum is σ = 8237944. Its totient is φ = 8208000.

The previous prime is 8222969. The next prime is 8222987. The reversal of 8222971 is 1792228.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8222971 - 2¹ = 8222969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8222911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6630 + ... + 7771.

It is an arithmetic number, because the mean of its divisors is an integer number (2059486).

Almost surely, 2^8222971 is an apocalyptic number.

8222971 is a deficient number, since it is larger than the sum of its proper divisors (14973).

8222971 is a wasteful number, since it uses less digits than its factorization.

8222971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14972.

The product of its digits is 4032, while the sum is 31.

The square root of 8222971 is about 2867.5723181814. The cubic root of 8222971 is about 201.8410915708.

The spelling of 8222971 in words is "eight million, two hundred twenty-two thousand, nine hundred seventy-one".