9839172 has 24 divisors (see below), whose sum is σ = 26238016. Its totient is φ = 2811168.

The previous prime is 9839171. The next prime is 9839177. The reversal of 9839172 is 2719389.

It is a self number, because there is not a number n which added to its sum of digits gives 9839172.

It is not an unprimeable number, because it can be changed into a prime (9839171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58483 + ... + 58650.

Almost surely, 2^9839172 is an apocalyptic number.

It is an amenable number.

9839172 is an abundant number, since it is smaller than the sum of its proper divisors (16398844).

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

9839172 is a wasteful number, since it uses less digits than its factorization.

9839172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117147 (or 117145 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 9839172 is about 3136.7454471155. The cubic root of 9839172 is about 214.2822432454.

It can be divided in two parts, 9839 and 172, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 9839172 in words is "nine million, eight hundred thirty-nine thousand, one hundred seventy-two".