89859 has 16 divisors (see below), whose sum is σ = 149760. Its totient is φ = 46560.

The previous prime is 89849. The next prime is 89867. The reversal of 89859 is 95898.

It is not a de Polignac number, because 89859 - 2⁸ = 89603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37 + ... + 425.

It is an arithmetic number, because the mean of its divisors is an integer number (9360).

2⁸⁹⁸⁵⁹ is an apocalyptic number.

89859 is a deficient number, since it is larger than the sum of its proper divisors (59901).

89859 is a wasteful number, since it uses less digits than its factorization.

89859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410.

The product of its digits is 25920, while the sum is 39.

The square root of 89859 is about 299.7649078862. The cubic root of 89859 is about 44.7906323420.

Adding to 89859 its sum of digits (39), we get a palindrome (89898).

The spelling of 89859 in words is "eighty-nine thousand, eight hundred fifty-nine".