8221975 has 18 divisors (see below), whose sum is σ = 10627296. Its totient is φ = 6303600.

The previous prime is 8221963. The next prime is 8221981. The reversal of 8221975 is 5791228.

It is not a de Polignac number, because 8221975 - 2⁷ = 8221847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8221975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 79774 + ... + 79876.

Almost surely, 2^8221975 is an apocalyptic number.

8221975 is a deficient number, since it is larger than the sum of its proper divisors (2405321).

8221975 is a wasteful number, since it uses less digits than its factorization.

8221975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 139 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 8221975 is about 2867.3986468575. The cubic root of 8221975 is about 201.8329419679.

The spelling of 8221975 in words is "eight million, two hundred twenty-one thousand, nine hundred seventy-five".