89686543 has 4 divisors (see below), whose sum is σ = 94962240. Its totient is φ = 84410848.

The previous prime is 89686501. The next prime is 89686579. The reversal of 89686543 is 34568698.

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: 34568698 = 2 ⋅17284349.

It is not a de Polignac number, because 89686543 - 2⁹ = 89686031 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89686343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2637823 + ... + 2637856.

It is an arithmetic number, because the mean of its divisors is an integer number (23740560).

Almost surely, 2^89686543 is an apocalyptic number.

89686543 is a deficient number, since it is larger than the sum of its proper divisors (5275697).

89686543 is a wasteful number, since it uses less digits than its factorization.

89686543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275696.

The product of its digits is 1244160, while the sum is 49.

The square root of 89686543 is about 9470.2979361792. The cubic root of 89686543 is about 447.6195999625.

The spelling of 89686543 in words is "eighty-nine million, six hundred eighty-six thousand, five hundred forty-three".