89710866 has 72 divisors (see below), whose sum is σ = 232303500. Its totient is φ = 24929856.

The previous prime is 89710847. The next prime is 89710867. The reversal of 89710866 is 66801798.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 89699841 + 11025 = 9471^2 + 105^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89710867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 31260 + ... + 34008.

Almost surely, 2^89710866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89710866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116151750).

89710866 is an abundant number, since it is smaller than the sum of its proper divisors (142592634).

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

89710866 is a wasteful number, since it uses less digits than its factorization.

89710866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2798 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 89710866 is about 9471.5820220278. The cubic root of 89710866 is about 447.6600611327.

The spelling of 89710866 in words is "eighty-nine million, seven hundred ten thousand, eight hundred sixty-six".