98596591 has 2 divisors, whose sum is σ = 98596592. Its totient is φ = 98596590.

The previous prime is 98596543. The next prime is 98596621. The reversal of 98596591 is 19569589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98596591 - 2⁹ = 98596079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98596891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49298295 + 49298296.

It is an arithmetic number, because the mean of its divisors is an integer number (49298296).

Almost surely, 2^98596591 is an apocalyptic number.

98596591 is a deficient number, since it is larger than the sum of its proper divisors (1).

98596591 is an equidigital number, since it uses as much as digits as its factorization.

98596591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 52.

The square root of 98596591 is about 9929.5816125353. The cubic root of 98596591 is about 461.9772965986.

The spelling of 98596591 in words is "ninety-eight million, five hundred ninety-six thousand, five hundred ninety-one".