98543689 has 4 divisors (see below), whose sum is σ = 99263124. Its totient is φ = 97824256.

The previous prime is 98543681. The next prime is 98543693. The reversal of 98543689 is 98634589.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98634589 = 3833 ⋅25733.

It can be written as a sum of positive squares in 2 ways, for example, as 76265289 + 22278400 = 8733^2 + 4720^2 .

It is a cyclic number.

It is not a de Polignac number, because 98543689 - 2³ = 98543681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98543681) 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, 359512 + ... + 359785.

It is an arithmetic number, because the mean of its divisors is an integer number (24815781).

Almost surely, 2^98543689 is an apocalyptic number.

It is an amenable number.

98543689 is a deficient number, since it is larger than the sum of its proper divisors (719435).

98543689 is a wasteful number, since it uses less digits than its factorization.

98543689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719434.

The product of its digits is 1866240, while the sum is 52.

The square root of 98543689 is about 9926.9173966544. The cubic root of 98543689 is about 461.8946571787.

The spelling of 98543689 in words is "ninety-eight million, five hundred forty-three thousand, six hundred eighty-nine".