9928243 has 8 divisors (see below), whose sum is σ = 10757600. Its totient is φ = 9162504.

The previous prime is 9928231. The next prime is 9928267. The reversal of 9928243 is 3428299.

It is not a de Polignac number, because 9928243 - 2¹⁷ = 9797171 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9928213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63 + ... + 4456.

It is an arithmetic number, because the mean of its divisors is an integer number (1344700).

Almost surely, 2^9928243 is an apocalyptic number.

9928243 is a deficient number, since it is larger than the sum of its proper divisors (829357).

9928243 is an equidigital number, since it uses as much as digits as its factorization.

9928243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558 (or 4532 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 9928243 is about 3150.9114554363. The cubic root of 9928243 is about 214.9269122402.

The spelling of 9928243 in words is "nine million, nine hundred twenty-eight thousand, two hundred forty-three".