8021003 has 2 divisors, whose sum is σ = 8021004. Its totient is φ = 8021002.

The previous prime is 8020993. The next prime is 8021009. The reversal of 8021003 is 3001208.

8021003 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8021003 - 2¹² = 8016907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (8021009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4010501 + 4010502.

It is an arithmetic number, because the mean of its divisors is an integer number (4010502).

Almost surely, 2^8021003 is an apocalyptic number.

8021003 is a deficient number, since it is larger than the sum of its proper divisors (1).

8021003 is an equidigital number, since it uses as much as digits as its factorization.

8021003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 8021003 is about 2832.1375319712. The cubic root of 8021003 is about 200.1748720543.

The spelling of 8021003 in words is "eight million, twenty-one thousand, three".