10043021 has 8 divisors (see below), whose sum is σ = 10462464. Its totient is φ = 9631440.

The previous prime is 10043009. The next prime is 10043029. The reversal of 10043021 is 12034001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10043021 - 2⁶ = 10042957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10042993 and 10043011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10043029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716 + ... + 4538.

It is an arithmetic number, because the mean of its divisors is an integer number (1307808).

Almost surely, 2^10043021 is an apocalyptic number.

It is an amenable number.

10043021 is a deficient number, since it is larger than the sum of its proper divisors (419443).

10043021 is an equidigital number, since it uses as much as digits as its factorization.

10043021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 10043021 is about 3169.0725772693. The cubic root of 10043021 is about 215.7519801260.

Adding to 10043021 its reverse (12034001), we get a palindrome (22077022).

The spelling of 10043021 in words is "ten million, forty-three thousand, twenty-one".