8221922 has 4 divisors (see below), whose sum is σ = 12332886. Its totient is φ = 4110960.

The previous prime is 8221921. The next prime is 8221937. The reversal of 8221922 is 2291228.

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

It can be written as a sum of positive squares in only one way, i.e., 6145441 + 2076481 = 2479^2 + 1441^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8221891 and 8221900.

It is not an unprimeable number, because it can be changed into a prime (8221921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055479 + ... + 2055482.

Almost surely, 2^8221922 is an apocalyptic number.

8221922 is a deficient number, since it is larger than the sum of its proper divisors (4110964).

8221922 is a wasteful number, since it uses less digits than its factorization.

8221922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110963.

The product of its digits is 1152, while the sum is 26.

The square root of 8221922 is about 2867.3894050163. The cubic root of 8221922 is about 201.8325082859.

It can be divided in two parts, 822 and 1922, that added together give a cube (2744 = 14³).

The spelling of 8221922 in words is "eight million, two hundred twenty-one thousand, nine hundred twenty-two".