9792728 has 32 divisors (see below), whose sum is σ = 20154960. Its totient is φ = 4423680.

The previous prime is 9792719. The next prime is 9792737. The reversal of 9792728 is 8272979.

9792728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9792719) and next prime (9792737).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22400 + ... + 22832.

Almost surely, 2^9792728 is an apocalyptic number.

It is an amenable number.

9792728 is an abundant number, since it is smaller than the sum of its proper divisors (10362232).

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

9792728 is a wasteful number, since it uses less digits than its factorization.

9792728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 703 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 9792728 is about 3129.3334753586. Note that the first 3 decimals coincide. The cubic root of 9792728 is about 213.9445513896.

The spelling of 9792728 in words is "nine million, seven hundred ninety-two thousand, seven hundred twenty-eight".