9712165 has 4 divisors (see below), whose sum is σ = 11654604. Its totient is φ = 7769728.

The previous prime is 9712147. The next prime is 9712189. The reversal of 9712165 is 5612179.

9712165 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 986049 + 8726116 = 993^2 + 2954^2 .

It is a cyclic number.

It is not a de Polignac number, because 9712165 - 2⁵ = 9712133 is a prime.

It is a super-3 number, since 3×9712165³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

9712165 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971212 + ... + 971221.

It is an arithmetic number, because the mean of its divisors is an integer number (2913651).

Almost surely, 2^9712165 is an apocalyptic number.

It is an amenable number.

9712165 is a deficient number, since it is larger than the sum of its proper divisors (1942439).

9712165 is a wasteful number, since it uses less digits than its factorization.

9712165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942438.

The product of its digits is 3780, while the sum is 31.

The square root of 9712165 is about 3116.4346615965. The cubic root of 9712165 is about 213.3562407585.

It can be divided in two parts, 971 and 2165, that added together give a square (3136 = 56²).

The spelling of 9712165 in words is "nine million, seven hundred twelve thousand, one hundred sixty-five".