98996809 has 2 divisors, whose sum is σ = 98996810. Its totient is φ = 98996808.

The previous prime is 98996803. The next prime is 98996813. The reversal of 98996809 is 90869989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68227600 + 30769209 = 8260^2 + 5547^2 .

It is a cyclic number.

It is not a de Polignac number, because 98996809 - 2⁹ = 98996297 is a prime.

It is not a weakly prime, because it can be changed into another prime (98996803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49498404 + 49498405.

It is an arithmetic number, because the mean of its divisors is an integer number (49498405).

Almost surely, 2^98996809 is an apocalyptic number.

It is an amenable number.

98996809 is a deficient number, since it is larger than the sum of its proper divisors (1).

98996809 is an equidigital number, since it uses as much as digits as its factorization.

98996809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 58.

The square root of 98996809 is about 9949.7140159906. The cubic root of 98996809 is about 462.6015305708.

The spelling of 98996809 in words is "ninety-eight million, nine hundred ninety-six thousand, eight hundred nine".