89316840 has 64 divisors (see below), whose sum is σ = 270993600. Its totient is φ = 23547392.

The previous prime is 89316811. The next prime is 89316863. The reversal of 89316840 is 4861398.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6499 + ... + 14861.

It is an arithmetic number, because the mean of its divisors is an integer number (4234275).

Almost surely, 2^89316840 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 89316840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135496800).

89316840 is an abundant number, since it is smaller than the sum of its proper divisors (181676760).

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

89316840 is a wasteful number, since it uses less digits than its factorization.

89316840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8466 (or 8462 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 89316840 is about 9450.7586997024. The cubic root of 89316840 is about 447.0036985015.

The spelling of 89316840 in words is "eighty-nine million, three hundred sixteen thousand, eight hundred forty".