8227381 has 2 divisors, whose sum is σ = 8227382. Its totient is φ = 8227380.

The previous prime is 8227379. The next prime is 8227391. The reversal of 8227381 is 1837228.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6081156 + 2146225 = 2466^2 + 1465^2 .

It is a cyclic number.

It is not a de Polignac number, because 8227381 - 2¹ = 8227379 is a prime.

It is a super-2 number, since 2×8227381² = 135379596238322, which contains 22 as substring.

Together with 8227379, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8227321) 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, 4113690 + 4113691.

It is an arithmetic number, because the mean of its divisors is an integer number (4113691).

Almost surely, 2^8227381 is an apocalyptic number.

It is an amenable number.

8227381 is a deficient number, since it is larger than the sum of its proper divisors (1).

8227381 is an equidigital number, since it uses as much as digits as its factorization.

8227381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 8227381 is about 2868.3411582307. The cubic root of 8227381 is about 201.8771677505.

The spelling of 8227381 in words is "eight million, two hundred twenty-seven thousand, three hundred eighty-one".