89478528 has 64 divisors (see below), whose sum is σ = 243249600. Its totient is φ = 29127168.

The previous prime is 89478517. The next prime is 89478551. The reversal of 89478528 is 82587498.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 13803 + ... + 19221.

It is an arithmetic number, because the mean of its divisors is an integer number (3800775).

Almost surely, 2^89478528 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 89478528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121624800).

89478528 is an abundant number, since it is smaller than the sum of its proper divisors (153771072).

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

89478528 is a wasteful number, since it uses less digits than its factorization.

89478528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479 (or 5467 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 51.

The square root of 89478528 is about 9459.3090656770. The cubic root of 89478528 is about 447.2732690371.

The spelling of 89478528 in words is "eighty-nine million, four hundred seventy-eight thousand, five hundred twenty-eight".