89018 has 8 divisors (see below), whose sum is σ = 136512. Its totient is φ = 43516.

The previous prime is 89017. The next prime is 89021. The reversal of 89018 is 81098.

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

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89017) 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, 380 + ... + 567.

It is an arithmetic number, because the mean of its divisors is an integer number (17064).

2⁸⁹⁰¹⁸ is an apocalyptic number.

89018 is a deficient number, since it is larger than the sum of its proper divisors (47494).

89018 is a wasteful number, since it uses less digits than its factorization.

89018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 89018 is about 298.3588443469. The cubic root of 89018 is about 44.6504606935.

The spelling of 89018 in words is "eighty-nine thousand, eighteen".