6867864 has 96 divisors (see below), whose sum is σ = 20442240. Its totient is φ = 2073600.

The previous prime is 6867841. The next prime is 6867871. The reversal of 6867864 is 4687686.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 37854 + ... + 38034.

It is an arithmetic number, because the mean of its divisors is an integer number (212940).

Almost surely, 2^6867864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6867864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10221120).

6867864 is an abundant number, since it is smaller than the sum of its proper divisors (13574376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6867864 is a wasteful number, since it uses less digits than its factorization.

6867864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 234 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 6867864 is about 2620.6609853241. The cubic root of 6867864 is about 190.0818114901.

The spelling of 6867864 in words is "six million, eight hundred sixty-seven thousand, eight hundred sixty-four".