89068728 has 128 divisors (see below), whose sum is σ = 265950720. Its totient is φ = 24330240.

The previous prime is 89068697. The next prime is 89068739. The reversal of 89068728 is 82786098.

It is a happy number.

It is a nialpdrome in base 14.

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 31 ways as a sum of consecutive naturals, for example, 461400 + ... + 461592.

It is an arithmetic number, because the mean of its divisors is an integer number (2077740).

Almost surely, 2^89068728 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 89068728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132975360).

89068728 is an abundant number, since it is smaller than the sum of its proper divisors (176881992).

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

89068728 is a wasteful number, since it uses less digits than its factorization.

89068728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 89068728 is about 9437.6230058209. The cubic root of 89068728 is about 446.5894062058.

The spelling of 89068728 in words is "eighty-nine million, sixty-eight thousand, seven hundred twenty-eight".