9609521 has 4 divisors (see below), whose sum is σ = 9642612. Its totient is φ = 9576432.

The previous prime is 9609517. The next prime is 9609533. The reversal of 9609521 is 1259069.

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 9394225 + 215296 = 3065^2 + 464^2 .

It is a cyclic number.

It is not a de Polignac number, because 9609521 - 2² = 9609517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9609571) 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, 16106 + ... + 16691.

It is an arithmetic number, because the mean of its divisors is an integer number (2410653).

Almost surely, 2^9609521 is an apocalyptic number.

It is an amenable number.

9609521 is a deficient number, since it is larger than the sum of its proper divisors (33091).

9609521 is a wasteful number, since it uses less digits than its factorization.

9609521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33090.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 9609521 is about 3099.9227409727. The cubic root of 9609521 is about 212.6019515400.

The spelling of 9609521 in words is "nine million, six hundred nine thousand, five hundred twenty-one".