9264721 has 2 divisors, whose sum is σ = 9264722. Its totient is φ = 9264720.

The previous prime is 9264707. The next prime is 9264743. The reversal of 9264721 is 1274629.

9264721 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., 5934096 + 3330625 = 2436^2 + 1825^2 .

It is an emirp because it is prime and its reverse (1274629) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9264721 - 2⁹ = 9264209 is a prime.

9264721 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9264751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4632360 + 4632361.

It is an arithmetic number, because the mean of its divisors is an integer number (4632361).

Almost surely, 2^9264721 is an apocalyptic number.

It is an amenable number.

9264721 is a deficient number, since it is larger than the sum of its proper divisors (1).

9264721 is an equidigital number, since it uses as much as digits as its factorization.

9264721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 9264721 is about 3043.8004205269. The cubic root of 9264721 is about 210.0281217064.

The spelling of 9264721 in words is "nine million, two hundred sixty-four thousand, seven hundred twenty-one".