98009728 has 32 divisors (see below), whose sum is σ = 199805760. Its totient is φ = 47862528.

The previous prime is 98009713. The next prime is 98009731. The reversal of 98009728 is 82790089.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (43).

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 3 ways as a sum of consecutive naturals, for example, 3400 + ... + 14407.

It is an arithmetic number, because the mean of its divisors is an integer number (6243930).

Almost surely, 2^98009728 is an apocalyptic number.

It is an amenable number.

98009728 is an abundant number, since it is smaller than the sum of its proper divisors (101796032).

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

98009728 is a wasteful number, since it uses less digits than its factorization.

98009728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17864 (or 17852 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 98009728 is about 9899.9862626167. The cubic root of 98009728 is about 461.0588839134.

The spelling of 98009728 in words is "ninety-eight million, nine thousand, seven hundred twenty-eight".