8294021 has 2 divisors, whose sum is σ = 8294022. Its totient is φ = 8294020.

The previous prime is 8294009. The next prime is 8294123. The reversal of 8294021 is 1204928.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8236900 + 57121 = 2870^2 + 239^2 .

It is a cyclic number.

It is not a de Polignac number, because 8294021 - 2¹⁰ = 8292997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8294821) 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 as a sum of consecutive naturals, namely, 4147010 + 4147011.

It is an arithmetic number, because the mean of its divisors is an integer number (4147011).

Almost surely, 2^8294021 is an apocalyptic number.

It is an amenable number.

8294021 is a deficient number, since it is larger than the sum of its proper divisors (1).

8294021 is an equidigital number, since it uses as much as digits as its factorization.

8294021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 8294021 is about 2879.9342006372. The cubic root of 8294021 is about 202.4207564756.

Adding to 8294021 its reverse (1204928), we get a palindrome (9498949).

The spelling of 8294021 in words is "eight million, two hundred ninety-four thousand, twenty-one".