89012 has 36 divisors (see below), whose sum is σ = 206304. Its totient is φ = 32640.

The previous prime is 89009. The next prime is 89017. The reversal of 89012 is 21098.

It is a super-2 number, since 2×89012² = 15846272288, which contains 22 as substring.

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

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5228 + ... + 5244.

2⁸⁹⁰¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103152).

89012 is an abundant number, since it is smaller than the sum of its proper divisors (117292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89012 is a wasteful number, since it uses less digits than its factorization.

89012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 89012 is about 298.3487891713. The cubic root of 89012 is about 44.6494574927.

The spelling of 89012 in words is "eighty-nine thousand, twelve".