9742172 has 12 divisors (see below), whose sum is σ = 18598776. Its totient is φ = 4428240.

The previous prime is 9742171. The next prime is 9742181. The reversal of 9742172 is 2712479.

9742172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9742171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110663 + ... + 110750.

It is an arithmetic number, because the mean of its divisors is an integer number (1549898).

Almost surely, 2^9742172 is an apocalyptic number.

It is an amenable number.

9742172 is a deficient number, since it is larger than the sum of its proper divisors (8856604).

9742172 is a wasteful number, since it uses less digits than its factorization.

9742172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221428 (or 221426 counting only the distinct ones).

The product of its digits is 7056, while the sum is 32.

The square root of 9742172 is about 3121.2452643136. The cubic root of 9742172 is about 213.5757454914.

The spelling of 9742172 in words is "nine million, seven hundred forty-two thousand, one hundred seventy-two".