9304721 has 2 divisors, whose sum is σ = 9304722. Its totient is φ = 9304720.

The previous prime is 9304717. The next prime is 9304751. The reversal of 9304721 is 1274039.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6948496 + 2356225 = 2636^2 + 1535^2 .

It is a cyclic number.

It is not a de Polignac number, because 9304721 - 2² = 9304717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9304751) 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 as a sum of consecutive naturals, namely, 4652360 + 4652361.

It is an arithmetic number, because the mean of its divisors is an integer number (4652361).

Almost surely, 2^9304721 is an apocalyptic number.

It is an amenable number.

9304721 is a deficient number, since it is larger than the sum of its proper divisors (1).

9304721 is an equidigital number, since it uses as much as digits as its factorization.

9304721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 9304721 is about 3050.3640766309. The cubic root of 9304721 is about 210.3299499463.

The spelling of 9304721 in words is "nine million, three hundred four thousand, seven hundred twenty-one".