3805687 has 2 divisors, whose sum is σ = 3805688. Its totient is φ = 3805686.

The previous prime is 3805679. The next prime is 3805717. The reversal of 3805687 is 7865083.

It is a weak prime.

It is an emirp because it is prime and its reverse (7865083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3805687 - 2³ = 3805679 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3805987) 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, 1902843 + 1902844.

It is an arithmetic number, because the mean of its divisors is an integer number (1902844).

Almost surely, 2^3805687 is an apocalyptic number.

3805687 is a deficient number, since it is larger than the sum of its proper divisors (1).

3805687 is an equidigital number, since it uses as much as digits as its factorization.

3805687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 3805687 is about 1950.8170083327. The cubic root of 3805687 is about 156.1268828554.

The spelling of 3805687 in words is "three million, eight hundred five thousand, six hundred eighty-seven".