9008172 has 30 divisors (see below), whose sum is σ = 23549988. Its totient is φ = 3002616.

The previous prime is 9008171. The next prime is 9008177. The reversal of 9008172 is 2718009.

9008172 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9008172² = 162294325563168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (9008171) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13578 + ... + 14225.

Almost surely, 2^9008172 is an apocalyptic number.

It is an amenable number.

9008172 is an abundant number, since it is smaller than the sum of its proper divisors (14541816).

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

9008172 is a wasteful number, since it uses less digits than its factorization.

9008172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27819 (or 27808 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 9008172 is about 3001.3616909663. The cubic root of 9008172 is about 208.0713204635.

It can be divided in two parts, 9008 and 172, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 9008172 in words is "nine million, eight thousand, one hundred seventy-two".