8236021 has 2 divisors, whose sum is σ = 8236022. Its totient is φ = 8236020.

The previous prime is 8236009. The next prime is 8236027. The reversal of 8236021 is 1206328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5225796 + 3010225 = 2286^2 + 1735^2 .

It is a cyclic number.

It is not a de Polignac number, because 8236021 - 2⁵ = 8235989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8235983 and 8236001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8236027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4118010 + 4118011.

It is an arithmetic number, because the mean of its divisors is an integer number (4118011).

Almost surely, 2^8236021 is an apocalyptic number.

It is an amenable number.

8236021 is a deficient number, since it is larger than the sum of its proper divisors (1).

8236021 is an equidigital number, since it uses as much as digits as its factorization.

8236021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 8236021 is about 2869.8468600258. The cubic root of 8236021 is about 201.9478102599.

The spelling of 8236021 in words is "eight million, two hundred thirty-six thousand, twenty-one".