98221549 has 2 divisors, whose sum is σ = 98221550. Its totient is φ = 98221548.

The previous prime is 98221537. The next prime is 98221553. The reversal of 98221549 is 94512289.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98148649 + 72900 = 9907^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 98221549 - 2¹⁷ = 98090477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98228549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49110774 + 49110775.

It is an arithmetic number, because the mean of its divisors is an integer number (49110775).

Almost surely, 2^98221549 is an apocalyptic number.

It is an amenable number.

98221549 is a deficient number, since it is larger than the sum of its proper divisors (1).

98221549 is an equidigital number, since it uses as much as digits as its factorization.

98221549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The square root of 98221549 is about 9910.6785337836. The cubic root of 98221549 is about 461.3907954619.

The spelling of 98221549 in words is "ninety-eight million, two hundred twenty-one thousand, five hundred forty-nine".