98618563 has 2 divisors, whose sum is σ = 98618564. Its totient is φ = 98618562.

The previous prime is 98618551. The next prime is 98618587. The reversal of 98618563 is 36581689.

It is a weak prime.

It is an emirp because it is prime and its reverse (36581689) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98618563 - 2¹⁷ = 98487491 is a prime.

It is not a weakly prime, because it can be changed into another prime (98618063) 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, 49309281 + 49309282.

It is an arithmetic number, because the mean of its divisors is an integer number (49309282).

Almost surely, 2^98618563 is an apocalyptic number.

98618563 is a deficient number, since it is larger than the sum of its proper divisors (1).

98618563 is an equidigital number, since it uses as much as digits as its factorization.

98618563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 98618563 is about 9930.6879419303. The cubic root of 98618563 is about 462.0116108724.

The spelling of 98618563 in words is "ninety-eight million, six hundred eighteen thousand, five hundred sixty-three".