8722122 has 32 divisors (see below), whose sum is σ = 18600192. Its totient is φ = 2717184.

The previous prime is 8722117. The next prime is 8722123. The reversal of 8722122 is 2212278.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8722092 and 8722101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23583 + ... + 23949.

It is an arithmetic number, because the mean of its divisors is an integer number (581256).

Almost surely, 2^8722122 is an apocalyptic number.

8722122 is an abundant number, since it is smaller than the sum of its proper divisors (9878070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8722122 is a wasteful number, since it uses less digits than its factorization.

8722122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622.

The product of its digits is 896, while the sum is 24.

The square root of 8722122 is about 2953.3238901279. The cubic root of 8722122 is about 205.8451879870.

The spelling of 8722122 in words is "eight million, seven hundred twenty-two thousand, one hundred twenty-two".