6733681 has 2 divisors, whose sum is σ = 6733682. Its totient is φ = 6733680.

The previous prime is 6733669. The next prime is 6733709. The reversal of 6733681 is 1863376.

6733681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5085025 + 1648656 = 2255^2 + 1284^2 .

It is a cyclic number.

It is not a de Polignac number, because 6733681 - 2¹¹ = 6731633 is a prime.

It is a super-2 number, since 2×6733681² = 90684919619522, which contains 22 as substring.

6733681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6730681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3366840 + 3366841.

It is an arithmetic number, because the mean of its divisors is an integer number (3366841).

Almost surely, 2^6733681 is an apocalyptic number.

It is an amenable number.

6733681 is a deficient number, since it is larger than the sum of its proper divisors (1).

6733681 is an equidigital number, since it uses as much as digits as its factorization.

6733681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 6733681 is about 2594.9337178433. The cubic root of 6733681 is about 188.8357334602.

The spelling of 6733681 in words is "six million, seven hundred thirty-three thousand, six hundred eighty-one".