9974172 has 48 divisors (see below), whose sum is σ = 26544672. Its totient is φ = 2887680.

The previous prime is 9974147. The next prime is 9974177. The reversal of 9974172 is 2714799.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 9974172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9974177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772 + ... + 4532.

It is an arithmetic number, because the mean of its divisors is an integer number (553014).

Almost surely, 2^9974172 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 9974172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13272336).

9974172 is an abundant number, since it is smaller than the sum of its proper divisors (16570500).

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

9974172 is a wasteful number, since it uses less digits than its factorization.

9974172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798 (or 3796 counting only the distinct ones).

The product of its digits is 31752, while the sum is 39.

The square root of 9974172 is about 3158.1912545000. The cubic root of 9974172 is about 215.2578266217.

The spelling of 9974172 in words is "nine million, nine hundred seventy-four thousand, one hundred seventy-two".