9656081 has 4 divisors (see below), whose sum is σ = 9680100. Its totient is φ = 9632064.

The previous prime is 9656069. The next prime is 9656083. The reversal of 9656081 is 1806569.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5313025 + 4343056 = 2305^2 + 2084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9656081 is a prime.

It is a super-2 number, since 2×9656081² = 186479800557122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9656083) 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 3 ways as a sum of consecutive naturals, for example, 11396 + ... + 12213.

It is an arithmetic number, because the mean of its divisors is an integer number (2420025).

Almost surely, 2^9656081 is an apocalyptic number.

It is an amenable number.

9656081 is a deficient number, since it is larger than the sum of its proper divisors (24019).

9656081 is a wasteful number, since it uses less digits than its factorization.

9656081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24018.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 9656081 is about 3107.4235308371. The cubic root of 9656081 is about 212.9447644177.

The spelling of 9656081 in words is "nine million, six hundred fifty-six thousand, eighty-one".