9623728 has 20 divisors (see below), whose sum is σ = 19627960. Its totient is φ = 4558464.

The previous prime is 9623699. The next prime is 9623743. The reversal of 9623728 is 8273269.

It is a super-2 number, since 2×9623728² = 185232281235968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15525 + ... + 16132.

It is an arithmetic number, because the mean of its divisors is an integer number (981398).

Almost surely, 2^9623728 is an apocalyptic number.

It is an amenable number.

9623728 is an abundant number, since it is smaller than the sum of its proper divisors (10004232).

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

9623728 is a wasteful number, since it uses less digits than its factorization.

9623728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31684 (or 31678 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 9623728 is about 3102.2134033622. The cubic root of 9623728 is about 212.7066722868.

The spelling of 9623728 in words is "nine million, six hundred twenty-three thousand, seven hundred twenty-eight".