3689863 has 2 divisors, whose sum is σ = 3689864. Its totient is φ = 3689862.

The previous prime is 3689843. The next prime is 3689869.

3689863 is nontrivially palindromic in base 10.

3689863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3689863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3689869) 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, 1844931 + 1844932.

It is an arithmetic number, because the mean of its divisors is an integer number (1844932).

Almost surely, 2^3689863 is an apocalyptic number.

3689863 is a deficient number, since it is larger than the sum of its proper divisors (1).

3689863 is an equidigital number, since it uses as much as digits as its factorization.

3689863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The square root of 3689863 is about 1920.9016112232. The cubic root of 3689863 is about 154.5266586452.

The spelling of 3689863 in words is "three million, six hundred eighty-nine thousand, eight hundred sixty-three".