9216538 has 8 divisors (see below), whose sum is σ = 13926132. Its totient is φ = 4574496.

The previous prime is 9216527. The next prime is 9216547. The reversal of 9216538 is 8356129.

It can be written as a sum of positive squares in 2 ways, for example, as 8803089 + 413449 = 2967^2 + 643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 16545 + ... + 17092.

Almost surely, 2^9216538 is an apocalyptic number.

9216538 is a deficient number, since it is larger than the sum of its proper divisors (4709594).

9216538 is a wasteful number, since it uses less digits than its factorization.

9216538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33776.

The product of its digits is 12960, while the sum is 34.

The square root of 9216538 is about 3035.8751621238. The cubic root of 9216538 is about 209.6633911994.

The spelling of 9216538 in words is "nine million, two hundred sixteen thousand, five hundred thirty-eight".