9725928 has 16 divisors (see below), whose sum is σ = 24314880. Its totient is φ = 3241968.

The previous prime is 9725923. The next prime is 9725939. The reversal of 9725928 is 8295279.

9725928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9725928² = 189187350922368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9725928.

It is not an unprimeable number, because it can be changed into a prime (9725923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202600 + ... + 202647.

It is an arithmetic number, because the mean of its divisors is an integer number (1519680).

Almost surely, 2^9725928 is an apocalyptic number.

It is an amenable number.

9725928 is an abundant number, since it is smaller than the sum of its proper divisors (14588952).

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

9725928 is a wasteful number, since it uses less digits than its factorization.

9725928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405256 (or 405252 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 9725928 is about 3118.6420121585. The cubic root of 9725928 is about 213.4569747684.

The spelling of 9725928 in words is "nine million, seven hundred twenty-five thousand, nine hundred twenty-eight".