9766321 has 2 divisors, whose sum is σ = 9766322. Its totient is φ = 9766320.

The previous prime is 9766307. The next prime is 9766343. The reversal of 9766321 is 1236679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9388096 + 378225 = 3064^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 9766321 - 2⁷ = 9766193 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (9766391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4883160 + 4883161.

It is an arithmetic number, because the mean of its divisors is an integer number (4883161).

Almost surely, 2^9766321 is an apocalyptic number.

It is an amenable number.

9766321 is a deficient number, since it is larger than the sum of its proper divisors (1).

9766321 is an equidigital number, since it uses as much as digits as its factorization.

9766321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

The square root of 9766321 is about 3125.1113580159. Note that the first 3 decimals coincide. The cubic root of 9766321 is about 213.7520711585.

The spelling of 9766321 in words is "nine million, seven hundred sixty-six thousand, three hundred twenty-one".