98709641 has 2 divisors, whose sum is σ = 98709642. Its totient is φ = 98709640.

The previous prime is 98709619. The next prime is 98709643. The reversal of 98709641 is 14690789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86564416 + 12145225 = 9304^2 + 3485^2 .

It is an emirp because it is prime and its reverse (14690789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98709641 - 2¹⁸ = 98447497 is a prime.

Together with 98709643, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 98709592 and 98709601.

It is not a weakly prime, because it can be changed into another prime (98709643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49354820 + 49354821.

It is an arithmetic number, because the mean of its divisors is an integer number (49354821).

Almost surely, 2^98709641 is an apocalyptic number.

It is an amenable number.

98709641 is a deficient number, since it is larger than the sum of its proper divisors (1).

98709641 is an equidigital number, since it uses as much as digits as its factorization.

98709641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 98709641 is about 9935.2725679772. The cubic root of 98709641 is about 462.1537955517.

The spelling of 98709641 in words is "ninety-eight million, seven hundred nine thousand, six hundred forty-one".