9665231 has 8 divisors (see below), whose sum is σ = 10288800. Its totient is φ = 9047808.

The previous prime is 9665209. The next prime is 9665269. The reversal of 9665231 is 1325669.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-9665231 is a prime.

It is a super-2 number, since 2×9665231² = 186833380566722, 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 (9665291) 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, 1955 + ... + 4811.

It is an arithmetic number, because the mean of its divisors is an integer number (1286100).

Almost surely, 2^9665231 is an apocalyptic number.

9665231 is a deficient number, since it is larger than the sum of its proper divisors (623569).

9665231 is a wasteful number, since it uses less digits than its factorization.

9665231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073.

The product of its digits is 9720, while the sum is 32.

The square root of 9665231 is about 3108.8954630222. The cubic root of 9665231 is about 213.0120045840.

The spelling of 9665231 in words is "nine million, six hundred sixty-five thousand, two hundred thirty-one".