98006591 has 2 divisors, whose sum is σ = 98006592. Its totient is φ = 98006590.

The previous prime is 98006563. The next prime is 98006621. The reversal of 98006591 is 19560089.

It is a weak prime.

It is an emirp because it is prime and its reverse (19560089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98006591 - 2⁶ = 98006527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98006551) 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, 49003295 + 49003296.

It is an arithmetic number, because the mean of its divisors is an integer number (49003296).

Almost surely, 2^98006591 is an apocalyptic number.

98006591 is a deficient number, since it is larger than the sum of its proper divisors (1).

98006591 is an equidigital number, since it uses as much as digits as its factorization.

98006591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 98006591 is about 9899.8278267857. The cubic root of 98006591 is about 461.0539648196.

The spelling of 98006591 in words is "ninety-eight million, six thousand, five hundred ninety-one".