89321856 has 128 divisors (see below), whose sum is σ = 264751200. Its totient is φ = 26492928.

The previous prime is 89321839. The next prime is 89321887. The reversal of 89321856 is 65812398.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

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, 144460 + ... + 145076.

Almost surely, 2^89321856 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 89321856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132375600).

89321856 is an abundant number, since it is smaller than the sum of its proper divisors (175429344).

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

89321856 is a wasteful number, since it uses less digits than its factorization.

89321856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 664 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 89321856 is about 9451.0240714962. The cubic root of 89321856 is about 447.0120661978.

The spelling of 89321856 in words is "eighty-nine million, three hundred twenty-one thousand, eight hundred fifty-six".