9665956 has 12 divisors (see below), whose sum is σ = 17168368. Its totient is φ = 4760712.

The previous prime is 9665951. The next prime is 9665959. The reversal of 9665956 is 6595669.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9665951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17766 + ... + 18301.

Almost surely, 2^9665956 is an apocalyptic number.

It is an amenable number.

9665956 is a deficient number, since it is larger than the sum of its proper divisors (7502412).

9665956 is a wasteful number, since it uses less digits than its factorization.

9665956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36138 (or 36136 counting only the distinct ones).

The product of its digits is 437400, while the sum is 46.

The square root of 9665956 is about 3109.0120617328. The cubic root of 9665956 is about 213.0173305419.

The spelling of 9665956 in words is "nine million, six hundred sixty-five thousand, nine hundred fifty-six".