89940528 has 120 divisors (see below), whose sum is σ = 269268480. Its totient is φ = 27941760.

The previous prime is 89940493. The next prime is 89940533. The reversal of 89940528 is 82504998.

89940528 is a `hidden beast` number, since 89 + 9 + 40 + 528 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 194025 + ... + 194487.

It is an arithmetic number, because the mean of its divisors is an integer number (2243904).

Almost surely, 2^89940528 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 89940528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134634240).

89940528 is an abundant number, since it is smaller than the sum of its proper divisors (179327952).

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

89940528 is a wasteful number, since it uses less digits than its factorization.

89940528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 89940528 is about 9483.6980129061. The cubic root of 89940528 is about 448.0417424966.

The spelling of 89940528 in words is "eighty-nine million, nine hundred forty thousand, five hundred twenty-eight".