6863871 has 24 divisors (see below), whose sum is σ = 10859184. Its totient is φ = 3843840.

The previous prime is 6863861. The next prime is 6863873. The reversal of 6863871 is 1783686.

It is not a de Polignac number, because 6863871 - 2¹¹ = 6861823 is a prime.

It is a super-2 number, since 2×6863871² = 94225450209282, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6863873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7351 + ... + 8231.

It is an arithmetic number, because the mean of its divisors is an integer number (452466).

Almost surely, 2^6863871 is an apocalyptic number.

6863871 is a deficient number, since it is larger than the sum of its proper divisors (3995313).

6863871 is a wasteful number, since it uses less digits than its factorization.

6863871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951 (or 944 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 6863871 is about 2619.8990438565. The cubic root of 6863871 is about 190.0449662732.

The spelling of 6863871 in words is "six million, eight hundred sixty-three thousand, eight hundred seventy-one".