89636688 has 30 divisors (see below), whose sum is σ = 250858634. Its totient is φ = 29878848.

The previous prime is 89636683. The next prime is 89636689. The reversal of 89636688 is 88663698.

It can be written as a sum of positive squares in only one way, i.e., 84492864 + 5143824 = 9192^2 + 2268^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89636683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311095 + ... + 311382.

Almost surely, 2^89636688 is an apocalyptic number.

It is an amenable number.

89636688 is an abundant number, since it is smaller than the sum of its proper divisors (161221946).

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

89636688 is a wasteful number, since it uses less digits than its factorization.

89636688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622491 (or 622482 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 89636688 is about 9467.6653933269. The cubic root of 89636688 is about 447.5366435876.

It can be divided in two parts, 8963 and 6688, that added together give a palindrome (15651).

The spelling of 89636688 in words is "eighty-nine million, six hundred thirty-six thousand, six hundred eighty-eight".