9087264721 has 2 divisors, whose sum is σ = 9087264722. Its totient is φ = 9087264720.

The previous prime is 9087264707. The next prime is 9087264749. The reversal of 9087264721 is 1274627809.

9087264721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4613126400 + 4474138321 = 67920^2 + 66889^2 .

It is a cyclic number.

It is not a de Polignac number, because 9087264721 - 2³³ = 497330129 is a prime.

It is not a weakly prime, because it can be changed into another prime (9087264751) 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 as a sum of consecutive naturals, namely, 4543632360 + 4543632361.

It is an arithmetic number, because the mean of its divisors is an integer number (4543632361).

Almost surely, 2^9087264721 is an apocalyptic number.

It is an amenable number.

9087264721 is a deficient number, since it is larger than the sum of its proper divisors (1).

9087264721 is an equidigital number, since it uses as much as digits as its factorization.

9087264721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 9087264721 is about 95327.1457718105. The cubic root of 9087264721 is about 2086.7850972595.

The spelling of 9087264721 in words is "nine billion, eighty-seven million, two hundred sixty-four thousand, seven hundred twenty-one".