6382681 has 2 divisors, whose sum is σ = 6382682. Its totient is φ = 6382680.

The previous prime is 6382643. The next prime is 6382699. The reversal of 6382681 is 1862836.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6375625 + 7056 = 2525^2 + 84^2 .

It is a cyclic number.

It is not a de Polignac number, because 6382681 - 2¹⁵ = 6349913 is a prime.

It is a super-2 number, since 2×6382681² = 81477233495522, which contains 22 as substring.

6382681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6382381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3191340 + 3191341.

It is an arithmetic number, because the mean of its divisors is an integer number (3191341).

Almost surely, 2^6382681 is an apocalyptic number.

It is an amenable number.

6382681 is a deficient number, since it is larger than the sum of its proper divisors (1).

6382681 is an equidigital number, since it uses as much as digits as its factorization.

6382681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 34.

The square root of 6382681 is about 2526.3968413533. The cubic root of 6382681 is about 185.4959277228.

The spelling of 6382681 in words is "six million, three hundred eighty-two thousand, six hundred eighty-one".