9680804521 has 4 divisors (see below), whose sum is σ = 9681001344. Its totient is φ = 9680607700.

The previous prime is 9680804519. The next prime is 9680804533. The reversal of 9680804521 is 1254080869.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9680804521 - 2¹ = 9680804519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9680804561) 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, 46236 + ... + 146626.

It is an arithmetic number, because the mean of its divisors is an integer number (2420250336).

Almost surely, 2^9680804521 is an apocalyptic number.

It is an amenable number.

9680804521 is a deficient number, since it is larger than the sum of its proper divisors (196823).

9680804521 is a wasteful number, since it uses less digits than its factorization.

9680804521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196822.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 9680804521 is about 98391.0794787820. The cubic root of 9680804521 is about 2131.2635145544.

The spelling of 9680804521 in words is "nine billion, six hundred eighty million, eight hundred four thousand, five hundred twenty-one".