89789 has 8 divisors (see below), whose sum is σ = 104448. Its totient is φ = 75600.

The previous prime is 89783. The next prime is 89797. The reversal of 89789 is 98798.

89789 = 172² + 173² + 174².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89789 - 2⁸ = 89533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 770.

It is an arithmetic number, because the mean of its divisors is an integer number (13056).

2⁸⁹⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

89789 is a deficient number, since it is larger than the sum of its proper divisors (14659).

89789 is a wasteful number, since it uses less digits than its factorization.

89789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235.

The product of its digits is 36288, while the sum is 41.

The square root of 89789 is about 299.6481269756. The cubic root of 89789 is about 44.7789987131.

Subtracting 89789 from its reverse (98798), we obtain a palindrome (9009).

It can be divided in two parts, 89 and 789, that added together give a palindrome (878).

The spelling of 89789 in words is "eighty-nine thousand, seven hundred eighty-nine".