8722226 has 4 divisors (see below), whose sum is σ = 13083342. Its totient is φ = 4361112.

The previous prime is 8722223. The next prime is 8722237. The reversal of 8722226 is 6222278.

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., 4515625 + 4206601 = 2125^2 + 2051^2 .

It is not an unprimeable number, because it can be changed into a prime (8722223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2180555 + ... + 2180558.

Almost surely, 2^8722226 is an apocalyptic number.

8722226 is a deficient number, since it is larger than the sum of its proper divisors (4361116).

8722226 is a wasteful number, since it uses less digits than its factorization.

8722226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361115.

The product of its digits is 5376, while the sum is 29.

The square root of 8722226 is about 2953.3414973552. The cubic root of 8722226 is about 205.8460061295.

The spelling of 8722226 in words is "eight million, seven hundred twenty-two thousand, two hundred twenty-six".