89743 has 4 divisors (see below), whose sum is σ = 95040. Its totient is φ = 84448.

The previous prime is 89689. The next prime is 89753. The reversal of 89743 is 34798.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89743 - 2⁹ = 89231 is a prime.

It is a Smith number, since the sum of its digits (31) 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.

89743 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89753) 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, 2623 + ... + 2656.

It is an arithmetic number, because the mean of its divisors is an integer number (23760).

2⁸⁹⁷⁴³ is an apocalyptic number.

89743 is a deficient number, since it is larger than the sum of its proper divisors (5297).

89743 is a wasteful number, since it uses less digits than its factorization.

89743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5296.

The product of its digits is 6048, while the sum is 31.

The square root of 89743 is about 299.5713604469. The cubic root of 89743 is about 44.7713504645.

Subtracting from 89743 its reverse (34798), we obtain a palindrome (54945).

The spelling of 89743 in words is "eighty-nine thousand, seven hundred forty-three".