89841 has 4 divisors (see below), whose sum is σ = 119792. Its totient is φ = 59892.

The previous prime is 89839. The next prime is 89849. The reversal of 89841 is 14898.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 89841 - 2¹ = 89839 is a prime.

It is a D-number.

It is a Duffinian number.

89841 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 89799 and 89808.

It is not an unprimeable number, because it can be changed into a prime (89849) 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, 14971 + ... + 14976.

It is an arithmetic number, because the mean of its divisors is an integer number (29948).

2⁸⁹⁸⁴¹ is an apocalyptic number.

It is an amenable number.

89841 is a deficient number, since it is larger than the sum of its proper divisors (29951).

89841 is a wasteful number, since it uses less digits than its factorization.

89841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29950.

The product of its digits is 2304, while the sum is 30.

The square root of 89841 is about 299.7348828548. The cubic root of 89841 is about 44.7876414146.

It can be divided in two parts, 898 and 41, that added together give a palindrome (939).

The spelling of 89841 in words is "eighty-nine thousand, eight hundred forty-one".