3871659 has 16 divisors (see below), whose sum is σ = 5877504. Its totient is φ = 2244000.

The previous prime is 3871657. The next prime is 3871661. The reversal of 3871659 is 9561783.

It is an interprime number because it is at equal distance from previous prime (3871657) and next prime (3871661).

It is not a de Polignac number, because 3871659 - 2¹ = 3871657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3871657) 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 in 15 ways as a sum of consecutive naturals, for example, 1792 + ... + 3309.

It is an arithmetic number, because the mean of its divisors is an integer number (367344).

Almost surely, 2^3871659 is an apocalyptic number.

3871659 is a deficient number, since it is larger than the sum of its proper divisors (2005845).

3871659 is a wasteful number, since it uses less digits than its factorization.

3871659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5138.

The product of its digits is 45360, while the sum is 39.

The square root of 3871659 is about 1967.6531706579. The cubic root of 3871659 is about 157.0238783376.

The spelling of 3871659 in words is "three million, eight hundred seventy-one thousand, six hundred fifty-nine".