9647231 has 16 divisors (see below), whose sum is σ = 11443200. Its totient is φ = 8035200.

The previous prime is 9647221. The next prime is 9647237. The reversal of 9647231 is 1327469.

It is a de Polignac number, because none of the positive numbers 2^k-9647231 is a prime.

It is a super-2 number, since 2×9647231² = 186138131934722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9647237) 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, 5735 + ... + 7223.

It is an arithmetic number, because the mean of its divisors is an integer number (715200).

Almost surely, 2^9647231 is an apocalyptic number.

9647231 is a deficient number, since it is larger than the sum of its proper divisors (1795969).

9647231 is a wasteful number, since it uses less digits than its factorization.

9647231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550.

The product of its digits is 9072, while the sum is 32.

The square root of 9647231 is about 3105.9991951061. Note that the first 3 decimals coincide. The cubic root of 9647231 is about 212.8796884238.

The spelling of 9647231 in words is "nine million, six hundred forty-seven thousand, two hundred thirty-one".