9094721 has 2 divisors, whose sum is σ = 9094722. Its totient is φ = 9094720.

The previous prime is 9094703. The next prime is 9094727. The reversal of 9094721 is 1274909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6948496 + 2146225 = 2636^2 + 1465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9094721 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (9094727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4547360 + 4547361.

It is an arithmetic number, because the mean of its divisors is an integer number (4547361).

Almost surely, 2^9094721 is an apocalyptic number.

It is an amenable number.

9094721 is a deficient number, since it is larger than the sum of its proper divisors (1).

9094721 is an equidigital number, since it uses as much as digits as its factorization.

9094721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 9094721 is about 3015.7455131360. The cubic root of 9094721 is about 208.7355690599.

The spelling of 9094721 in words is "nine million, ninety-four thousand, seven hundred twenty-one".