8228971 has 4 divisors (see below), whose sum is σ = 8344944. Its totient is φ = 8113000.

The previous prime is 8228959. The next prime is 8228989. The reversal of 8228971 is 1798228.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8228971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8228971.

It is not an unprimeable number, because it can be changed into a prime (8228951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57880 + ... + 58021.

It is an arithmetic number, because the mean of its divisors is an integer number (2086236).

Almost surely, 2^8228971 is an apocalyptic number.

8228971 is a deficient number, since it is larger than the sum of its proper divisors (115973).

8228971 is a wasteful number, since it uses less digits than its factorization.

8228971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115972.

The product of its digits is 16128, while the sum is 37.

The square root of 8228971 is about 2868.6183085242. The cubic root of 8228971 is about 201.8901716465.

The spelling of 8228971 in words is "eight million, two hundred twenty-eight thousand, nine hundred seventy-one".