6680731 has 2 divisors, whose sum is σ = 6680732. Its totient is φ = 6680730.

The previous prime is 6680699. The next prime is 6680743. The reversal of 6680731 is 1370866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6680731 - 2⁵ = 6680699 is a prime.

It is a super-2 number, since 2×6680731² = 89264333388722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6680693 and 6680702.

It is not a weakly prime, because it can be changed into another prime (6680431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340365 + 3340366.

It is an arithmetic number, because the mean of its divisors is an integer number (3340366).

Almost surely, 2^6680731 is an apocalyptic number.

6680731 is a deficient number, since it is larger than the sum of its proper divisors (1).

6680731 is an equidigital number, since it uses as much as digits as its factorization.

6680731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 6680731 is about 2584.7110089911. The cubic root of 6680731 is about 188.3394632580.

The spelling of 6680731 in words is "six million, six hundred eighty thousand, seven hundred thirty-one".