6788687 has 2 divisors, whose sum is σ = 6788688. Its totient is φ = 6788686.

The previous prime is 6788669. The next prime is 6788689. The reversal of 6788687 is 7868876.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6788687 - 2¹⁰ = 6787663 is a prime.

Together with 6788689, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6788689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3394343 + 3394344.

It is an arithmetic number, because the mean of its divisors is an integer number (3394344).

Almost surely, 2^6788687 is an apocalyptic number.

6788687 is a deficient number, since it is larger than the sum of its proper divisors (1).

6788687 is an equidigital number, since it uses as much as digits as its factorization.

6788687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 50.

The square root of 6788687 is about 2605.5108904013. The cubic root of 6788687 is about 189.3485259277.

The spelling of 6788687 in words is "six million, seven hundred eighty-eight thousand, six hundred eighty-seven".