98711321 has 2 divisors, whose sum is σ = 98711322. Its totient is φ = 98711320.

The previous prime is 98711317. The next prime is 98711323. The reversal of 98711321 is 12311789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61011721 + 37699600 = 7811^2 + 6140^2 .

It is a cyclic number.

It is not a de Polignac number, because 98711321 - 2² = 98711317 is a prime.

Together with 98711323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98711323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49355660 + 49355661.

It is an arithmetic number, because the mean of its divisors is an integer number (49355661).

Almost surely, 2^98711321 is an apocalyptic number.

It is an amenable number.

98711321 is a deficient number, since it is larger than the sum of its proper divisors (1).

98711321 is an equidigital number, since it uses as much as digits as its factorization.

98711321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 32.

The square root of 98711321 is about 9935.3571148701. The cubic root of 98711321 is about 462.1564174299.

The spelling of 98711321 in words is "ninety-eight million, seven hundred eleven thousand, three hundred twenty-one".