89518 has 16 divisors (see below), whose sum is σ = 158256. Its totient is φ = 37440.

The previous prime is 89513. The next prime is 89519. The reversal of 89518 is 81598.

It is a self number, because there is not a number n which added to its sum of digits gives 89518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89513) 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 7 ways as a sum of consecutive naturals, for example, 130 + ... + 442.

It is an arithmetic number, because the mean of its divisors is an integer number (9891).

2⁸⁹⁵¹⁸ is an apocalyptic number.

89518 is a deficient number, since it is larger than the sum of its proper divisors (68738).

89518 is a wasteful number, since it uses less digits than its factorization.

89518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339.

The product of its digits is 2880, while the sum is 31.

The square root of 89518 is about 299.1955882028. The cubic root of 89518 is about 44.7339028482.

It can be divided in two parts, 895 and 18, that multiplied together give a triangular number (16110 = T₁₇₉).

The spelling of 89518 in words is "eighty-nine thousand, five hundred eighteen".