9659971 has 8 divisors (see below), whose sum is σ = 9828000. Its totient is φ = 9493440.

The previous prime is 9659963. The next prime is 9659981. The reversal of 9659971 is 1799569.

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

It is a cyclic number.

It is not a de Polignac number, because 9659971 - 2³ = 9659963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9659911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27505 + ... + 27853.

It is an arithmetic number, because the mean of its divisors is an integer number (1228500).

Almost surely, 2^9659971 is an apocalyptic number.

9659971 is a deficient number, since it is larger than the sum of its proper divisors (168029).

9659971 is a wasteful number, since it uses less digits than its factorization.

9659971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

The product of its digits is 153090, while the sum is 46.

The square root of 9659971 is about 3108.0493882820. The cubic root of 9659971 is about 212.9733558626.

The spelling of 9659971 in words is "nine million, six hundred fifty-nine thousand, nine hundred seventy-one".