9783992321 has 2 divisors, whose sum is σ = 9783992322. Its totient is φ = 9783992320.

The previous prime is 9783992249. The next prime is 9783992341. The reversal of 9783992321 is 1232993879.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8322000625 + 1461991696 = 91225^2 + 38236^2 .

It is a cyclic number.

It is not a de Polignac number, because 9783992321 - 2²⁶ = 9716883457 is a prime.

It is not a weakly prime, because it can be changed into another prime (9783992341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4891996160 + 4891996161.

It is an arithmetic number, because the mean of its divisors is an integer number (4891996161).

Almost surely, 2^9783992321 is an apocalyptic number.

It is an amenable number.

9783992321 is a deficient number, since it is larger than the sum of its proper divisors (1).

9783992321 is an equidigital number, since it uses as much as digits as its factorization.

9783992321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The square root of 9783992321 is about 98914.0653345115. The cubic root of 9783992321 is about 2138.8091549779.

The spelling of 9783992321 in words is "nine billion, seven hundred eighty-three million, nine hundred ninety-two thousand, three hundred twenty-one".