6695687 has 2 divisors, whose sum is σ = 6695688. Its totient is φ = 6695686.

The previous prime is 6695681. The next prime is 6695699. The reversal of 6695687 is 7865966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6695687 - 2⁸ = 6695431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6695681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3347843 + 3347844.

It is an arithmetic number, because the mean of its divisors is an integer number (3347844).

Almost surely, 2^6695687 is an apocalyptic number.

6695687 is a deficient number, since it is larger than the sum of its proper divisors (1).

6695687 is an equidigital number, since it uses as much as digits as its factorization.

6695687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 6695687 is about 2587.6025583540. The cubic root of 6695687 is about 188.4799022634.

The spelling of 6695687 in words is "six million, six hundred ninety-five thousand, six hundred eighty-seven".