98738489 has 2 divisors, whose sum is σ = 98738490. Its totient is φ = 98738488.

The previous prime is 98738477. The next prime is 98738491. The reversal of 98738489 is 98483789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98168464 + 570025 = 9908^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 98738489 - 2¹⁶ = 98672953 is a prime.

Together with 98738491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98738429) 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, 49369244 + 49369245.

It is an arithmetic number, because the mean of its divisors is an integer number (49369245).

Almost surely, 2^98738489 is an apocalyptic number.

It is an amenable number.

98738489 is a deficient number, since it is larger than the sum of its proper divisors (1).

98738489 is an equidigital number, since it uses as much as digits as its factorization.

98738489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 56.

The square root of 98738489 is about 9936.7242590302. The cubic root of 98738489 is about 462.1988128164.

The spelling of 98738489 in words is "ninety-eight million, seven hundred thirty-eight thousand, four hundred eighty-nine".