98644543 has 4 divisors (see below), whose sum is σ = 98664408. Its totient is φ = 98624680.

The previous prime is 98644531. The next prime is 98644571. The reversal of 98644543 is 34544689.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34544689 = 23 ⋅1501943.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98644543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98644543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98644043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4953 + ... + 14893.

It is an arithmetic number, because the mean of its divisors is an integer number (24666102).

Almost surely, 2^98644543 is an apocalyptic number.

98644543 is a deficient number, since it is larger than the sum of its proper divisors (19865).

98644543 is an equidigital number, since it uses as much as digits as its factorization.

98644543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19864.

The product of its digits is 414720, while the sum is 43.

The square root of 98644543 is about 9931.9959222706. The cubic root of 98644543 is about 462.0521779740.

The spelling of 98644543 in words is "ninety-eight million, six hundred forty-four thousand, five hundred forty-three".