8172222 has 16 divisors (see below), whose sum is σ = 17055360. Its totient is φ = 2605592.

The previous prime is 8172211. The next prime is 8172233. The reversal of 8172222 is 2222718.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8172211) and next prime (8172233).

It is a junction number, because it is equal to n+sod(n) for n = 8172192 and 8172201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29472 + ... + 29747.

It is an arithmetic number, because the mean of its divisors is an integer number (1065960).

Almost surely, 2^8172222 is an apocalyptic number.

8172222 is an abundant number, since it is smaller than the sum of its proper divisors (8883138).

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

8172222 is a wasteful number, since it uses less digits than its factorization.

8172222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59247.

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

The square root of 8172222 is about 2858.7098488654. The cubic root of 8172222 is about 201.4250060087.

The spelling of 8172222 in words is "eight million, one hundred seventy-two thousand, two hundred twenty-two".