98518543 has 2 divisors, whose sum is σ = 98518544. Its totient is φ = 98518542.

The previous prime is 98518517. The next prime is 98518549. The reversal of 98518543 is 34581589.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98518543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98518543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98518549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49259271 + 49259272.

It is an arithmetic number, because the mean of its divisors is an integer number (49259272).

Almost surely, 2^98518543 is an apocalyptic number.

98518543 is a deficient number, since it is larger than the sum of its proper divisors (1).

98518543 is an equidigital number, since it uses as much as digits as its factorization.

98518543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 43.

The square root of 98518543 is about 9925.6507595220. The cubic root of 98518543 is about 461.8553656684.

The spelling of 98518543 in words is "ninety-eight million, five hundred eighteen thousand, five hundred forty-three".