6381871 has 8 divisors (see below), whose sum is σ = 6607440. Its totient is φ = 6159168.

The previous prime is 6381863. The next prime is 6381899. The reversal of 6381871 is 1781836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6381871 - 2³ = 6381863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6381811) 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 in 7 ways as a sum of consecutive naturals, for example, 4440 + ... + 5698.

It is an arithmetic number, because the mean of its divisors is an integer number (825930).

Almost surely, 2^6381871 is an apocalyptic number.

6381871 is a deficient number, since it is larger than the sum of its proper divisors (225569).

6381871 is a wasteful number, since it uses less digits than its factorization.

6381871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433.

The product of its digits is 8064, while the sum is 34.

The square root of 6381871 is about 2526.2365289101. The cubic root of 6381871 is about 185.4880805471.

The spelling of 6381871 in words is "six million, three hundred eighty-one thousand, eight hundred seventy-one".