9928223 has 4 divisors (see below), whose sum is σ = 9939840. Its totient is φ = 9916608.

The previous prime is 9928213. The next prime is 9928231. The reversal of 9928223 is 3228299.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9928223 - 2⁴ = 9928207 is a prime.

It is a super-2 number, since 2×9928223² = 197139223875458, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 4415 + ... + 6272.

It is an arithmetic number, because the mean of its divisors is an integer number (2484960).

Almost surely, 2^9928223 is an apocalyptic number.

9928223 is a deficient number, since it is larger than the sum of its proper divisors (11617).

9928223 is a wasteful number, since it uses less digits than its factorization.

9928223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11616.

The product of its digits is 15552, while the sum is 35.

The square root of 9928223 is about 3150.9082817499. The cubic root of 9928223 is about 214.9267679199.

The spelling of 9928223 in words is "nine million, nine hundred twenty-eight thousand, two hundred twenty-three".