3871787 has 2 divisors, whose sum is σ = 3871788. Its totient is φ = 3871786.

The previous prime is 3871783. The next prime is 3871811. The reversal of 3871787 is 7871783.

3871787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3871787 - 2² = 3871783 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3871781) 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, 1935893 + 1935894.

It is an arithmetic number, because the mean of its divisors is an integer number (1935894).

Almost surely, 2^3871787 is an apocalyptic number.

3871787 is a deficient number, since it is larger than the sum of its proper divisors (1).

3871787 is an equidigital number, since it uses as much as digits as its factorization.

3871787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 41.

The square root of 3871787 is about 1967.6856964465. The cubic root of 3871787 is about 157.0256087616.

The spelling of 3871787 in words is "three million, eight hundred seventy-one thousand, seven hundred eighty-seven".