10233821 has 4 divisors (see below), whose sum is σ = 11021052. Its totient is φ = 9446592.

The previous prime is 10233809. The next prime is 10233829. The reversal of 10233821 is 12833201.

10233821 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3290596 + 6943225 = 1814^2 + 2635^2 .

It is a cyclic number.

It is not a de Polignac number, because 10233821 - 2¹⁰ = 10232797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10233793 and 10233802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10233829) 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, 393596 + ... + 393621.

It is an arithmetic number, because the mean of its divisors is an integer number (2755263).

Almost surely, 2^10233821 is an apocalyptic number.

It is an amenable number.

10233821 is a deficient number, since it is larger than the sum of its proper divisors (787231).

10233821 is an equidigital number, since it uses as much as digits as its factorization.

10233821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787230.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 10233821 is about 3199.0343855607. The cubic root of 10233821 is about 217.1097224495.

The spelling of 10233821 in words is "ten million, two hundred thirty-three thousand, eight hundred twenty-one".