9635221 has 8 divisors (see below), whose sum is σ = 10090080. Its totient is φ = 9188592.

The previous prime is 9635189. The next prime is 9635257. The reversal of 9635221 is 1225369.

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

It is not a de Polignac number, because 9635221 - 2⁵ = 9635189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9635221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9635291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406 + ... + 4408.

It is an arithmetic number, because the mean of its divisors is an integer number (1261260).

Almost surely, 2^9635221 is an apocalyptic number.

It is an amenable number.

9635221 is a deficient number, since it is larger than the sum of its proper divisors (454859).

9635221 is a wasteful number, since it uses less digits than its factorization.

9635221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115.

The product of its digits is 3240, while the sum is 28.

The square root of 9635221 is about 3104.0652377165. The cubic root of 9635221 is about 212.7913125729.

The spelling of 9635221 in words is "nine million, six hundred thirty-five thousand, two hundred twenty-one".