695687 has 2 divisors, whose sum is σ = 695688. Its totient is φ = 695686.

The previous prime is 695677. The next prime is 695689. The reversal of 695687 is 786596.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 695687 - 2¹² = 691591 is a prime.

Together with 695689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 695687.

It is not a weakly prime, because it can be changed into another prime (695689) 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, 347843 + 347844.

It is an arithmetic number, because the mean of its divisors is an integer number (347844).

2⁶⁹⁵⁶⁸⁷ is an apocalyptic number.

695687 is a deficient number, since it is larger than the sum of its proper divisors (1).

695687 is an equidigital number, since it uses as much as digits as its factorization.

695687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 695687 is about 834.0785334727. The cubic root of 695687 is about 88.6076657877.

Subtracting 695687 from its reverse (786596), we obtain a palindrome (90909).

The spelling of 695687 in words is "six hundred ninety-five thousand, six hundred eighty-seven".