9965231 has 4 divisors (see below), whose sum is σ = 10058472. Its totient is φ = 9871992.

The previous prime is 9965227. The next prime is 9965239. The reversal of 9965231 is 1325699.

9965231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9965231 - 2² = 9965227 is a prime.

It is a super-2 number, since 2×9965231² = 198611657766722, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 9965191 and 9965200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9965239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46460 + ... + 46673.

It is an arithmetic number, because the mean of its divisors is an integer number (2514618).

Almost surely, 2^9965231 is an apocalyptic number.

9965231 is a deficient number, since it is larger than the sum of its proper divisors (93241).

9965231 is a wasteful number, since it uses less digits than its factorization.

9965231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93240.

The product of its digits is 14580, while the sum is 35.

The square root of 9965231 is about 3156.7754117137. The cubic root of 9965231 is about 215.1934872593.

The spelling of 9965231 in words is "nine million, nine hundred sixty-five thousand, two hundred thirty-one".