10043921 has 2 divisors, whose sum is σ = 10043922. Its totient is φ = 10043920.

The previous prime is 10043911. The next prime is 10043927. The reversal of 10043921 is 12934001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9120400 + 923521 = 3020^2 + 961^2 .

It is an emirp because it is prime and its reverse (12934001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10043921 - 2¹⁰ = 10042897 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 12.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 10043893 and 10043902.

It is not a weakly prime, because it can be changed into another prime (10043927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5021960 + 5021961.

It is an arithmetic number, because the mean of its divisors is an integer number (5021961).

Almost surely, 2^10043921 is an apocalyptic number.

It is an amenable number.

10043921 is a deficient number, since it is larger than the sum of its proper divisors (1).

10043921 is an equidigital number, since it uses as much as digits as its factorization.

10043921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 10043921 is about 3169.2145714672. The cubic root of 10043921 is about 215.7584247666.

Adding to 10043921 its reverse (12934001), we get a palindrome (22977922).

The spelling of 10043921 in words is "ten million, forty-three thousand, nine hundred twenty-one".