89843520 has 224 divisors, whose sum is σ = 321576192. Its totient is φ = 21086208.

The previous prime is 89843519. The next prime is 89843527. The reversal of 89843520 is 2534898.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89843527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286884 + ... + 287196.

It is an arithmetic number, because the mean of its divisors is an integer number (1435608).

Almost surely, 2^89843520 is an apocalyptic number.

89843520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89843520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160788096).

89843520 is an abundant number, since it is smaller than the sum of its proper divisors (231732672).

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

89843520 is a wasteful number, since it uses less digits than its factorization.

89843520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 89843520 is about 9478.5821724560. The cubic root of 89843520 is about 447.8806016849.

The spelling of 89843520 in words is "eighty-nine million, eight hundred forty-three thousand, five hundred twenty".