9717225 has 48 divisors (see below), whose sum is σ = 18665472. Its totient is φ = 4368960.

The previous prime is 9717223. The next prime is 9717259. The reversal of 9717225 is 5227179.

It is not a de Polignac number, because 9717225 - 2¹ = 9717223 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9717221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43464 + ... + 43686.

It is an arithmetic number, because the mean of its divisors is an integer number (388864).

Almost surely, 2^9717225 is an apocalyptic number.

It is an amenable number.

9717225 is a deficient number, since it is larger than the sum of its proper divisors (8948247).

9717225 is a wasteful number, since it uses less digits than its factorization.

9717225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 321 counting only the distinct ones).

The product of its digits is 8820, while the sum is 33.

The square root of 9717225 is about 3117.2463810228. The cubic root of 9717225 is about 213.3932869147.

The spelling of 9717225 in words is "nine million, seven hundred seventeen thousand, two hundred twenty-five".