3863887 has 2 divisors, whose sum is σ = 3863888. Its totient is φ = 3863886.

The previous prime is 3863863. The next prime is 3863903. The reversal of 3863887 is 7883683.

It is a strong prime.

It is an emirp because it is prime and its reverse (7883683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3863887 - 2⁷ = 3863759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3863837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1931943 + 1931944.

It is an arithmetic number, because the mean of its divisors is an integer number (1931944).

Almost surely, 2^3863887 is an apocalyptic number.

3863887 is a deficient number, since it is larger than the sum of its proper divisors (1).

3863887 is an equidigital number, since it uses as much as digits as its factorization.

3863887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 43.

The square root of 3863887 is about 1965.6772369847. The cubic root of 3863887 is about 156.9187376128.

It can be divided in two parts, 38 and 63887, that multiplied together give a triangular number (2427706 = T₂₂₀₃).

The spelling of 3863887 in words is "three million, eight hundred sixty-three thousand, eight hundred eighty-seven".