98786563 has 2 divisors, whose sum is σ = 98786564. Its totient is φ = 98786562.

The previous prime is 98786561. The next prime is 98786581. The reversal of 98786563 is 36568789.

It is a weak prime.

It is an emirp because it is prime and its reverse (36568789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98786563 - 2¹ = 98786561 is a prime.

Together with 98786561, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 98786563.

It is not a weakly prime, because it can be changed into another prime (98786561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49393281 + 49393282.

It is an arithmetic number, because the mean of its divisors is an integer number (49393282).

Almost surely, 2^98786563 is an apocalyptic number.

98786563 is a deficient number, since it is larger than the sum of its proper divisors (1).

98786563 is an equidigital number, since it uses as much as digits as its factorization.

98786563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The square root of 98786563 is about 9939.1429711017. The cubic root of 98786563 is about 462.2738127507.

The spelling of 98786563 in words is "ninety-eight million, seven hundred eighty-six thousand, five hundred sixty-three".