993866528 has 18 divisors (see below), whose sum is σ = 1957025889. Its totient is φ = 496844096.

The previous prime is 993866521. The next prime is 993866539. The reversal of 993866528 is 825668399.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

993866528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 698439184 + 295427344 = 26428^2 + 17188^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=22292.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993866521) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 175550 + ... + 181122.

Almost surely, 2^993866528 is an apocalyptic number.

It is an amenable number.

993866528 is a deficient number, since it is larger than the sum of its proper divisors (963159361).

993866528 is an frugal number, since it uses more digits than its factorization.

993866528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11156 (or 5575 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 56.

The square root of 993866528 is about 31525.6487324210. The cubic root of 993866528 is about 997.9513150897.

The spelling of 993866528 in words is "nine hundred ninety-three million, eight hundred sixty-six thousand, five hundred twenty-eight".