89311780 has 48 divisors (see below), whose sum is σ = 199543680. Its totient is φ = 33481728.

The previous prime is 89311771. The next prime is 89311801. The reversal of 89311780 is 8711398.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 35649 + ... + 38071.

It is an arithmetic number, because the mean of its divisors is an integer number (4157160).

Almost surely, 2^89311780 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 89311780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99771840).

89311780 is an abundant number, since it is smaller than the sum of its proper divisors (110231900).

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

89311780 is a wasteful number, since it uses less digits than its factorization.

89311780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548 (or 2546 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 89311780 is about 9450.4909925358. The cubic root of 89311780 is about 446.9952570869.

The spelling of 89311780 in words is "eighty-nine million, three hundred eleven thousand, seven hundred eighty".