8222722 has 4 divisors (see below), whose sum is σ = 12334086. Its totient is φ = 4111360.

The previous prime is 8222717. The next prime is 8222737. The reversal of 8222722 is 2272228.

It is a happy number.

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., 8173881 + 48841 = 2859^2 + 221^2 .

It is a super-2 number, since 2×8222722² = 135226314178568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055679 + ... + 2055682.

Almost surely, 2^8222722 is an apocalyptic number.

8222722 is a deficient number, since it is larger than the sum of its proper divisors (4111364).

8222722 is a wasteful number, since it uses less digits than its factorization.

8222722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111363.

The product of its digits is 1792, while the sum is 25.

The square root of 8222722 is about 2867.5289013365. The cubic root of 8222722 is about 201.8390542318.

The spelling of 8222722 in words is "eight million, two hundred twenty-two thousand, seven hundred twenty-two".