98417021 has 2 divisors, whose sum is σ = 98417022. Its totient is φ = 98417020.

The previous prime is 98416991. The next prime is 98417041. The reversal of 98417021 is 12071489.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72914521 + 25502500 = 8539^2 + 5050^2 .

It is an emirp because it is prime and its reverse (12071489) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98417021 - 2¹⁸ = 98154877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98417041) 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, 49208510 + 49208511.

It is an arithmetic number, because the mean of its divisors is an integer number (49208511).

Almost surely, 2^98417021 is an apocalyptic number.

It is an amenable number.

98417021 is a deficient number, since it is larger than the sum of its proper divisors (1).

98417021 is an equidigital number, since it uses as much as digits as its factorization.

98417021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 98417021 is about 9920.5353182175. The cubic root of 98417021 is about 461.6966659481.

The spelling of 98417021 in words is "ninety-eight million, four hundred seventeen thousand, twenty-one".