8170422 has 48 divisors (see below), whose sum is σ = 18350640. Its totient is φ = 2410560.

The previous prime is 8170397. The next prime is 8170441. The reversal of 8170422 is 2240718.

It is a junction number, because it is equal to n+sod(n) for n = 8170392 and 8170401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74904 + ... + 75012.

It is an arithmetic number, because the mean of its divisors is an integer number (382305).

Almost surely, 2^8170422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8170422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9175320).

8170422 is an abundant number, since it is smaller than the sum of its proper divisors (10180218).

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

8170422 is a wasteful number, since it uses less digits than its factorization.

8170422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 158 counting only the distinct ones).

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

The square root of 8170422 is about 2858.3950041938. The cubic root of 8170422 is about 201.4102164108.

The spelling of 8170422 in words is "eight million, one hundred seventy thousand, four hundred twenty-two".