9274721 has 2 divisors, whose sum is σ = 9274722. Its totient is φ = 9274720.

The previous prime is 9274711. The next prime is 9274739. The reversal of 9274721 is 1274729.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6964321 + 2310400 = 2639^2 + 1520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9274721 is a prime.

It is a Chen 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 (9274711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4637360 + 4637361.

It is an arithmetic number, because the mean of its divisors is an integer number (4637361).

Almost surely, 2^9274721 is an apocalyptic number.

It is an amenable number.

9274721 is a deficient number, since it is larger than the sum of its proper divisors (1).

9274721 is an equidigital number, since it uses as much as digits as its factorization.

9274721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 9274721 is about 3045.4426607638. The cubic root of 9274721 is about 210.1036600852.

The spelling of 9274721 in words is "nine million, two hundred seventy-four thousand, seven hundred twenty-one".