89691008 has 48 divisors (see below), whose sum is σ = 196435680. Its totient is φ = 40761600.

The previous prime is 89690989. The next prime is 89691059. The reversal of 89691008 is 80019698.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12593 + ... + 18383.

It is an arithmetic number, because the mean of its divisors is an integer number (4092410).

Almost surely, 2^89691008 is an apocalyptic number.

89691008 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89691008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98217840).

89691008 is an abundant number, since it is smaller than the sum of its proper divisors (106744672).

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

89691008 is a wasteful number, since it uses less digits than its factorization.

89691008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827 (or 5804 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 89691008 is about 9470.5336702849. The cubic root of 89691008 is about 447.6270280124.

The spelling of 89691008 in words is "eighty-nine million, six hundred ninety-one thousand, eight".