8021339 has 2 divisors, whose sum is σ = 8021340. Its totient is φ = 8021338.

The previous prime is 8021333. The next prime is 8021347. The reversal of 8021339 is 9331208.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8021339 - 2⁴ = 8021323 is a prime.

It is not a weakly prime, because it can be changed into another prime (8021333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4010669 + 4010670.

It is an arithmetic number, because the mean of its divisors is an integer number (4010670).

Almost surely, 2^8021339 is an apocalyptic number.

8021339 is a deficient number, since it is larger than the sum of its proper divisors (1).

8021339 is an equidigital number, since it uses as much as digits as its factorization.

8021339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 8021339 is about 2832.1968505032. The cubic root of 8021339 is about 200.1776671252.

The spelling of 8021339 in words is "eight million, twenty-one thousand, three hundred thirty-nine".