6382381 has 2 divisors, whose sum is σ = 6382382. Its totient is φ = 6382380.

The previous prime is 6382379. The next prime is 6382393. The reversal of 6382381 is 1832836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5904900 + 477481 = 2430^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 6382381 - 2¹ = 6382379 is a prime.

It is a super-2 number, since 2×6382381² = 81469574458322, which contains 22 as substring.

Together with 6382379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6382681) 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, 3191190 + 3191191.

It is an arithmetic number, because the mean of its divisors is an integer number (3191191).

Almost surely, 2^6382381 is an apocalyptic number.

It is an amenable number.

6382381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6382381 is an equidigital number, since it uses as much as digits as its factorization.

6382381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 6382381 is about 2526.3374675605. The cubic root of 6382381 is about 185.4930214389.

The spelling of 6382381 in words is "six million, three hundred eighty-two thousand, three hundred eighty-one".