89243520 has 128 divisors (see below), whose sum is σ = 290161440. Its totient is φ = 23322624.

The previous prime is 89243491. The next prime is 89243537. The reversal of 89243520 is 2534298.

It is a happy number.

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101322 + ... + 102198.

Almost surely, 2^89243520 is an apocalyptic number.

89243520 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 89243520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145080720).

89243520 is an abundant number, since it is smaller than the sum of its proper divisors (200917920).

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

89243520 is a wasteful number, since it uses less digits than its factorization.

89243520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 89243520 is about 9446.8788496519. The cubic root of 89243520 is about 446.8813502284.

The spelling of 89243520 in words is "eighty-nine million, two hundred forty-three thousand, five hundred twenty".