9707561 has 8 divisors (see below), whose sum is σ = 10308384. Its totient is φ = 9110080.

The previous prime is 9707531. The next prime is 9707567. The reversal of 9707561 is 1657079.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9707561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9707567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7766 + ... + 8928.

It is an arithmetic number, because the mean of its divisors is an integer number (1288548).

Almost surely, 2^9707561 is an apocalyptic number.

It is an amenable number.

9707561 is a deficient number, since it is larger than the sum of its proper divisors (600823).

9707561 is a wasteful number, since it uses less digits than its factorization.

9707561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 9707561 is about 3115.6959094238. The cubic root of 9707561 is about 213.3225219673.

The spelling of 9707561 in words is "nine million, seven hundred seven thousand, five hundred sixty-one".