89855 has 4 divisors (see below), whose sum is σ = 107832. Its totient is φ = 71880.

The previous prime is 89849. The next prime is 89867. The reversal of 89855 is 55898.

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

It is not a de Polignac number, because 89855 - 2⁴ = 89839 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8981 + ... + 8990.

It is an arithmetic number, because the mean of its divisors is an integer number (26958).

2⁸⁹⁸⁵⁵ is an apocalyptic number.

89855 is a deficient number, since it is larger than the sum of its proper divisors (17977).

89855 is a wasteful number, since it uses less digits than its factorization.

89855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17976.

The product of its digits is 14400, while the sum is 35.

The square root of 89855 is about 299.7582359169. The cubic root of 89855 is about 44.7899677260.

The spelling of 89855 in words is "eighty-nine thousand, eight hundred fifty-five".