6851887 has 8 divisors (see below), whose sum is σ = 7853472. Its totient is φ = 5856000.

The previous prime is 6851863. The next prime is 6851963. The reversal of 6851887 is 7881586.

6851887 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6851887 - 2⁷ = 6851759 is a prime.

It is a Duffinian number.

6851887 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6851807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587 + ... + 4027.

It is an arithmetic number, because the mean of its divisors is an integer number (981684).

Almost surely, 2^6851887 is an apocalyptic number.

6851887 is a deficient number, since it is larger than the sum of its proper divisors (1001585).

6851887 is a wasteful number, since it uses less digits than its factorization.

6851887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849.

The product of its digits is 107520, while the sum is 43.

The square root of 6851887 is about 2617.6109336569. The cubic root of 6851887 is about 189.9342986129.

The spelling of 6851887 in words is "six million, eight hundred fifty-one thousand, eight hundred eighty-seven".