98700221 has 2 divisors, whose sum is σ = 98700222. Its totient is φ = 98700220.

The previous prime is 98700163. The next prime is 98700227. The reversal of 98700221 is 12200789.

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., 62568100 + 36132121 = 7910^2 + 6011^2 .

It is an emirp because it is prime and its reverse (12200789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98700221 - 2⁶ = 98700157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98700227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49350110 + 49350111.

It is an arithmetic number, because the mean of its divisors is an integer number (49350111).

Almost surely, 2^98700221 is an apocalyptic number.

It is an amenable number.

98700221 is a deficient number, since it is larger than the sum of its proper divisors (1).

98700221 is an equidigital number, since it uses as much as digits as its factorization.

98700221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 98700221 is about 9934.7984881426. The cubic root of 98700221 is about 462.1390937549.

The spelling of 98700221 in words is "ninety-eight million, seven hundred thousand, two hundred twenty-one".