6871587 has 16 divisors (see below), whose sum is σ = 9850752. Its totient is φ = 4245120.

The previous prime is 6871583. The next prime is 6871639. The reversal of 6871587 is 7851786.

It is not a de Polignac number, because 6871587 - 2² = 6871583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6871583) 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 15 ways as a sum of consecutive naturals, for example, 2412 + ... + 4422.

It is an arithmetic number, because the mean of its divisors is an integer number (615672).

Almost surely, 2^6871587 is an apocalyptic number.

6871587 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

6871587 is a deficient number, since it is larger than the sum of its proper divisors (2979165).

6871587 is a wasteful number, since it uses less digits than its factorization.

6871587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098.

The product of its digits is 94080, while the sum is 42.

The square root of 6871587 is about 2621.3712060675. The cubic root of 6871587 is about 190.1161524316.

The spelling of 6871587 in words is "six million, eight hundred seventy-one thousand, five hundred eighty-seven".