9216705 has 16 divisors (see below), whose sum is σ = 14828544. Its totient is φ = 4888320.

The previous prime is 9216689. The next prime is 9216707. The reversal of 9216705 is 5076129.

9216705 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9216705 - 2⁴ = 9216689 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9216707) 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, 1257 + ... + 4473.

It is an arithmetic number, because the mean of its divisors is an integer number (926784).

Almost surely, 2^9216705 is an apocalyptic number.

It is an amenable number.

9216705 is a deficient number, since it is larger than the sum of its proper divisors (5611839).

9216705 is a wasteful number, since it uses less digits than its factorization.

9216705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 9216705 is about 3035.9026664239. The cubic root of 9216705 is about 209.6646575308.

It can be divided in two parts, 921 and 6705, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 9216705 in words is "nine million, two hundred sixteen thousand, seven hundred five".