6885861 has 8 divisors (see below), whose sum is σ = 9193440. Its totient is φ = 4584432.

The previous prime is 6885821. The next prime is 6885883. The reversal of 6885861 is 1685886.

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

It is not a de Polignac number, because 6885861 - 2⁶ = 6885797 is a prime.

It is a super-2 number, since 2×6885861² = 94830163422642, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6885821) 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, 2955 + ... + 4743.

It is an arithmetic number, because the mean of its divisors is an integer number (1149180).

Almost surely, 2^6885861 is an apocalyptic number.

It is an amenable number.

6885861 is a deficient number, since it is larger than the sum of its proper divisors (2307579).

6885861 is a wasteful number, since it uses less digits than its factorization.

6885861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075.

The product of its digits is 92160, while the sum is 42.

The square root of 6885861 is about 2624.0924145312. The cubic root of 6885861 is about 190.2477009420.

The spelling of 6885861 in words is "six million, eight hundred eighty-five thousand, eight hundred sixty-one".