98330021 has 2 divisors, whose sum is σ = 98330022. Its totient is φ = 98330020.

The previous prime is 98329963. The next prime is 98330059. The reversal of 98330021 is 12003389.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84897796 + 13432225 = 9214^2 + 3665^2 .

It is an emirp because it is prime and its reverse (12003389) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98330021 - 2¹⁴ = 98313637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98330321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49165010 + 49165011.

It is an arithmetic number, because the mean of its divisors is an integer number (49165011).

Almost surely, 2^98330021 is an apocalyptic number.

It is an amenable number.

98330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

98330021 is an equidigital number, since it uses as much as digits as its factorization.

98330021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 98330021 is about 9916.1495047221. The cubic root of 98330021 is about 461.5605802341.

The spelling of 98330021 in words is "ninety-eight million, three hundred thirty thousand, twenty-one".