9938928 has 20 divisors (see below), whose sum is σ = 25675688. Its totient is φ = 3312960.

The previous prime is 9938927. The next prime is 9938953. The reversal of 9938928 is 8298399.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 207061 = 9938928 / (9 + 9 + 3 + 8 + 9 + 2 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9938927) 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, 103483 + ... + 103578.

Almost surely, 2^9938928 is an apocalyptic number.

It is an amenable number.

9938928 is an abundant number, since it is smaller than the sum of its proper divisors (15736760).

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

9938928 is a wasteful number, since it uses less digits than its factorization.

9938928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207072 (or 207066 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 9938928 is about 3152.6065406263. The cubic root of 9938928 is about 215.0039876672.

The spelling of 9938928 in words is "nine million, nine hundred thirty-eight thousand, nine hundred twenty-eight".