9775321 has 2 divisors, whose sum is σ = 9775322. Its totient is φ = 9775320.

The previous prime is 9775313. The next prime is 9775379. The reversal of 9775321 is 1235779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8785296 + 990025 = 2964^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 9775321 - 2³ = 9775313 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (9775021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4887660 + 4887661.

It is an arithmetic number, because the mean of its divisors is an integer number (4887661).

Almost surely, 2^9775321 is an apocalyptic number.

It is an amenable number.

9775321 is a deficient number, since it is larger than the sum of its proper divisors (1).

9775321 is an equidigital number, since it uses as much as digits as its factorization.

9775321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13230, while the sum is 34.

The square root of 9775321 is about 3126.5509751162. The cubic root of 9775321 is about 213.8177109562.

The spelling of 9775321 in words is "nine million, seven hundred seventy-five thousand, three hundred twenty-one".