6681023 has 2 divisors, whose sum is σ = 6681024. Its totient is φ = 6681022.

The previous prime is 6681019. The next prime is 6681041. The reversal of 6681023 is 3201866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6681023 - 2² = 6681019 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 6680983 and 6681001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6681013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340511 + 3340512.

It is an arithmetic number, because the mean of its divisors is an integer number (3340512).

Almost surely, 2^6681023 is an apocalyptic number.

6681023 is a deficient number, since it is larger than the sum of its proper divisors (1).

6681023 is an equidigital number, since it uses as much as digits as its factorization.

6681023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 6681023 is about 2584.7674943793. The cubic root of 6681023 is about 188.3422071854.

Adding to 6681023 its reverse (3201866), we get a palindrome (9882889).

The spelling of 6681023 in words is "six million, six hundred eighty-one thousand, twenty-three".