8243172 has 54 divisors (see below), whose sum is σ = 24244038. Its totient is φ = 2354688.

The previous prime is 8243167. The next prime is 8243201. The reversal of 8243172 is 2713428.

It can be written as a sum of positive squares in only one way, i.e., 8156736 + 86436 = 2856^2 + 294^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 573 + ... + 4100.

Almost surely, 2^8243172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8243172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12122019).

8243172 is an abundant number, since it is smaller than the sum of its proper divisors (16000866).

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

8243172 is a wasteful number, since it uses less digits than its factorization.

8243172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697 (or 4685 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 8243172 is about 2871.0924749997. The cubic root of 8243172 is about 202.0062410254.

The spelling of 8243172 in words is "eight million, two hundred forty-three thousand, one hundred seventy-two".