8648172 has 72 divisors (see below), whose sum is σ = 24950016. Its totient is φ = 2502144.

The previous prime is 8648149. The next prime is 8648179. The reversal of 8648172 is 2718468.

8648172 is a `hidden beast` number, since 8 + 648 + 1 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8648179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7413 + ... + 8499.

It is an arithmetic number, because the mean of its divisors is an integer number (346528).

Almost surely, 2^8648172 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 8648172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12475008).

8648172 is an abundant number, since it is smaller than the sum of its proper divisors (16301844).

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

8648172 is a wasteful number, since it uses less digits than its factorization.

8648172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1122 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 8648172 is about 2940.7774482269. Note that the first 3 decimals coincide. The cubic root of 8648172 is about 205.2617873053.

The spelling of 8648172 in words is "eight million, six hundred forty-eight thousand, one hundred seventy-two".