9921233 has 4 divisors (see below), whose sum is σ = 11338560. Its totient is φ = 8503908.

The previous prime is 9921227. The next prime is 9921259. The reversal of 9921233 is 3321299.

9921233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3321299 = 191 ⋅17389.

It is not a de Polignac number, because 9921233 - 2⁶ = 9921169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9921196 and 9921205.

It is not an unprimeable number, because it can be changed into a prime (9921283) 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, 708653 + ... + 708666.

It is an arithmetic number, because the mean of its divisors is an integer number (2834640).

Almost surely, 2^9921233 is an apocalyptic number.

It is an amenable number.

9921233 is a deficient number, since it is larger than the sum of its proper divisors (1417327).

9921233 is a wasteful number, since it uses less digits than its factorization.

9921233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417326.

The product of its digits is 2916, while the sum is 29.

The square root of 9921233 is about 3149.7988824685. The cubic root of 9921233 is about 214.8763160979.

The spelling of 9921233 in words is "nine million, nine hundred twenty-one thousand, two hundred thirty-three".