9728886 has 8 divisors (see below), whose sum is σ = 19457784. Its totient is φ = 3242960.

The previous prime is 9728881. The next prime is 9728897. The reversal of 9728886 is 6888279.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

9728886 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9728881) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 810735 + ... + 810746.

It is an arithmetic number, because the mean of its divisors is an integer number (2432223).

Almost surely, 2^9728886 is an apocalyptic number.

9728886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9728886 is a wasteful number, since it uses less digits than its factorization.

9728886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621486.

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

The square root of 9728886 is about 3119.1162209831. The cubic root of 9728886 is about 213.4786125230.

The spelling of 9728886 in words is "nine million, seven hundred twenty-eight thousand, eight hundred eighty-six".