8304842561 has 4 divisors (see below), whose sum is σ = 8305416624. Its totient is φ = 8304268500.

The previous prime is 8304842543. The next prime is 8304842569. The reversal of 8304842561 is 1652484038.

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 a de Polignac number, because none of the positive numbers 2^k-8304842561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8304842569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264755 + ... + 294456.

It is an arithmetic number, because the mean of its divisors is an integer number (2076354156).

Almost surely, 2^8304842561 is an apocalyptic number.

It is an amenable number.

8304842561 is a deficient number, since it is larger than the sum of its proper divisors (574063).

8304842561 is a wasteful number, since it uses less digits than its factorization.

8304842561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574062.

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 8304842561 is about 91130.9089222751. The cubic root of 8304842561 is about 2025.0875386432.

The spelling of 8304842561 in words is "eight billion, three hundred four million, eight hundred forty-two thousand, five hundred sixty-one".