6380681 has 2 divisors, whose sum is σ = 6380682. Its totient is φ = 6380680.

The previous prime is 6380669. The next prime is 6380741. The reversal of 6380681 is 1860836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5683456 + 697225 = 2384^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 6380681 - 2¹⁸ = 6118537 is a prime.

It is a super-2 number, since 2×6380681² = 81426180047522, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (6380081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3190340 + 3190341.

It is an arithmetic number, because the mean of its divisors is an integer number (3190341).

Almost surely, 2^6380681 is an apocalyptic number.

It is an amenable number.

6380681 is a deficient number, since it is larger than the sum of its proper divisors (1).

6380681 is an equidigital number, since it uses as much as digits as its factorization.

6380681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 6380681 is about 2526.0009897069. Note that the first 3 decimals coincide. The cubic root of 6380681 is about 185.4765507759.

The spelling of 6380681 in words is "six million, three hundred eighty thousand, six hundred eighty-one".