89581336 has 32 divisors (see below), whose sum is σ = 181863360. Its totient is φ = 41121792.

The previous prime is 89581321. The next prime is 89581357. The reversal of 89581336 is 63318598.

It is a junction number, because it is equal to n+sod(n) for n = 89581292 and 89581301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17841 + ... + 22303.

It is an arithmetic number, because the mean of its divisors is an integer number (5683230).

Almost surely, 2^89581336 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 89581336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90931680).

89581336 is an abundant number, since it is smaller than the sum of its proper divisors (92282024).

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

89581336 is a wasteful number, since it uses less digits than its factorization.

89581336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675 (or 4671 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 89581336 is about 9464.7417291757. The cubic root of 89581336 is about 447.4445044214. Note that the first 3 decimals are identical.

The spelling of 89581336 in words is "eighty-nine million, five hundred eighty-one thousand, three hundred thirty-six".