88569728 has 128 divisors (see below), whose sum is σ = 209744640. Its totient is φ = 36864000.

The previous prime is 88569727. The next prime is 88569751. The reversal of 88569728 is 82796588.

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

It is a self number, because there is not a number n which added to its sum of digits gives 88569728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88569727) 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 15 ways as a sum of consecutive naturals, for example, 876878 + ... + 876978.

It is an arithmetic number, because the mean of its divisors is an integer number (1638630).

Almost surely, 2^88569728 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 88569728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104872320).

88569728 is an abundant number, since it is smaller than the sum of its proper divisors (121174912).

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

88569728 is a wasteful number, since it uses less digits than its factorization.

88569728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 164 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 53.

The square root of 88569728 is about 9411.1491328105. The cubic root of 88569728 is about 445.7538507816.

The spelling of 88569728 in words is "eighty-eight million, five hundred sixty-nine thousand, seven hundred twenty-eight".