99605728 has 72 divisors (see below), whose sum is σ = 210198240. Its totient is φ = 46425600.

The previous prime is 99605717. The next prime is 99605729. The reversal of 99605728 is 82750699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99605729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1260793 + ... + 1260871.

It is an arithmetic number, because the mean of its divisors is an integer number (2919420).

Almost surely, 2^99605728 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 99605728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105099120).

99605728 is an abundant number, since it is smaller than the sum of its proper divisors (110592512).

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

99605728 is a wasteful number, since it uses less digits than its factorization.

99605728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 99605728 is about 9980.2669302980. The cubic root of 99605728 is about 463.5480637221.

The spelling of 99605728 in words is "ninety-nine million, six hundred five thousand, seven hundred twenty-eight".