8105172 has 36 divisors (see below), whose sum is σ = 19970496. Its totient is φ = 2558160.

The previous prime is 8105129. The next prime is 8105179. The reversal of 8105172 is 2715018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8105179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3397 + ... + 5267.

It is an arithmetic number, because the mean of its divisors is an integer number (554736).

Almost surely, 2^8105172 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 8105172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9985248).

8105172 is an abundant number, since it is smaller than the sum of its proper divisors (11865324).

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

8105172 is a wasteful number, since it uses less digits than its factorization.

8105172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916 (or 1895 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 8105172 is about 2846.9583769349. The cubic root of 8105172 is about 200.8726204637.

The spelling of 8105172 in words is "eight million, one hundred five thousand, one hundred seventy-two".