9638217 has 16 divisors (see below), whose sum is σ = 14327680. Its totient is φ = 6403536.

The previous prime is 9638207. The next prime is 9638231. The reversal of 9638217 is 7128369.

9638217 is a `hidden beast` number, since 9 + 638 + 2 + 17 = 666.

It is not a de Polignac number, because 9638217 - 2²² = 5443913 is a prime.

It is a Duffinian number.

9638217 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9638207) 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, 12783 + ... + 13515.

It is an arithmetic number, because the mean of its divisors is an integer number (895480).

Almost surely, 2^9638217 is an apocalyptic number.

It is an amenable number.

9638217 is a deficient number, since it is larger than the sum of its proper divisors (4689463).

9638217 is a wasteful number, since it uses less digits than its factorization.

9638217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 1223 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 9638217 is about 3104.5477931576. The cubic root of 9638217 is about 212.8133655770.

It can be divided in two parts, 963 and 8217, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 9638217 in words is "nine million, six hundred thirty-eight thousand, two hundred seventeen".