98321 has 2 divisors, whose sum is σ = 98322. Its totient is φ = 98320.

The previous prime is 98317. The next prime is 98323. The reversal of 98321 is 12389.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96721 + 1600 = 311^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 98321 - 2² = 98317 is a prime.

It is a Sophie Germain prime.

Together with 98323, it forms a pair of twin primes.

It is a Chen prime.

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

It is a Curzon number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49160 + 49161.

It is an arithmetic number, because the mean of its divisors is an integer number (49161).

2⁹⁸³²¹ is an apocalyptic number.

It is an amenable number.

98321 is a deficient number, since it is larger than the sum of its proper divisors (1).

98321 is an equidigital number, since it uses as much as digits as its factorization.

98321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

The square root of 98321 is about 313.5617961423. The cubic root of 98321 is about 46.1546464961.

The spelling of 98321 in words is "ninety-eight thousand, three hundred twenty-one".