98980009 has 2 divisors, whose sum is σ = 98980010. Its totient is φ = 98980008.

The previous prime is 98979997. The next prime is 98980039. The reversal of 98980009 is 90008989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77792400 + 21187609 = 8820^2 + 4603^2 .

It is a cyclic number.

It is not a de Polignac number, because 98980009 - 2¹⁵ = 98947241 is a prime.

It is not a weakly prime, because it can be changed into another prime (98980039) 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, 49490004 + 49490005.

It is an arithmetic number, because the mean of its divisors is an integer number (49490005).

Almost surely, 2^98980009 is an apocalyptic number.

It is an amenable number.

98980009 is a deficient number, since it is larger than the sum of its proper divisors (1).

98980009 is an equidigital number, since it uses as much as digits as its factorization.

98980009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 98980009 is about 9948.8697347990. The cubic root of 98980009 is about 462.5753608876.

The spelling of 98980009 in words is "ninety-eight million, nine hundred eighty thousand, nine".