3869687 has 2 divisors, whose sum is σ = 3869688. Its totient is φ = 3869686.

The previous prime is 3869683. The next prime is 3869729. The reversal of 3869687 is 7869683.

It is a weak prime.

It is an emirp because it is prime and its reverse (7869683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3869687 - 2² = 3869683 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3869683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934843 + 1934844.

It is an arithmetic number, because the mean of its divisors is an integer number (1934844).

Almost surely, 2^3869687 is an apocalyptic number.

3869687 is a deficient number, since it is larger than the sum of its proper divisors (1).

3869687 is an equidigital number, since it uses as much as digits as its factorization.

3869687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 3869687 is about 1967.1520022611. The cubic root of 3869687 is about 156.9972141716.

It can be divided in two parts, 38696 and 87, that added together give a palindrome (38783).

The spelling of 3869687 in words is "three million, eight hundred sixty-nine thousand, six hundred eighty-seven".