89089686 has 64 divisors (see below), whose sum is σ = 227535360. Its totient is φ = 25310880.

The previous prime is 89089681. The next prime is 89089703. The reversal of 89089686 is 68698098.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89089681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79200 + ... + 80316.

It is an arithmetic number, because the mean of its divisors is an integer number (3555240).

Almost surely, 2^89089686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89089686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113767680).

89089686 is an abundant number, since it is smaller than the sum of its proper divisors (138445674).

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

89089686 is a wasteful number, since it uses less digits than its factorization.

89089686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 89089686 is about 9438.7332836562. The cubic root of 89089686 is about 446.6244311690.

The spelling of 89089686 in words is "eighty-nine million, eighty-nine thousand, six hundred eighty-six".