98168809 has 2 divisors, whose sum is σ = 98168810. Its totient is φ = 98168808.

The previous prime is 98168737. The next prime is 98168813. The reversal of 98168809 is 90886189.

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., 93315600 + 4853209 = 9660^2 + 2203^2 .

It is a cyclic number.

It is not a de Polignac number, because 98168809 - 2¹⁵ = 98136041 is a prime.

It is not a weakly prime, because it can be changed into another prime (98138809) 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, 49084404 + 49084405.

It is an arithmetic number, because the mean of its divisors is an integer number (49084405).

Almost surely, 2^98168809 is an apocalyptic number.

It is an amenable number.

98168809 is a deficient number, since it is larger than the sum of its proper divisors (1).

98168809 is an equidigital number, since it uses as much as digits as its factorization.

98168809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 98168809 is about 9908.0174101583. The cubic root of 98168809 is about 461.3081995094.

The spelling of 98168809 in words is "ninety-eight million, one hundred sixty-eight thousand, eight hundred nine".