8170222 has 4 divisors (see below), whose sum is σ = 12255336. Its totient is φ = 4085110.

The previous prime is 8170207. The next prime is 8170223. The reversal of 8170222 is 2220718.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8170193 and 8170202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8170223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2042554 + ... + 2042557.

It is an arithmetic number, because the mean of its divisors is an integer number (3063834).

Almost surely, 2^8170222 is an apocalyptic number.

8170222 is a deficient number, since it is larger than the sum of its proper divisors (4085114).

8170222 is a wasteful number, since it uses less digits than its factorization.

8170222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085113.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 8170222 is about 2858.3600193118. The cubic root of 8170222 is about 201.4085729880.

The spelling of 8170222 in words is "eight million, one hundred seventy thousand, two hundred twenty-two".