6859808 has 18 divisors (see below), whose sum is σ = 13534479. Its totient is φ = 3422496.

The previous prime is 6859781. The next prime is 6859813. The reversal of 6859808 is 8089586.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 3429904 + 3429904 = 1852^2 + 1852^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1852.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 14585 + ... + 15047.

Almost surely, 2^6859808 is an apocalyptic number.

It is an amenable number.

6859808 is a deficient number, since it is larger than the sum of its proper divisors (6674671).

6859808 is an frugal number, since it uses more digits than its factorization.

6859808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 6859808 is about 2619.1235175150. The cubic root of 6859808 is about 190.0074604642.

It can be divided in two parts, 6859 and 808, that added together give a palindrome (7667).

The spelling of 6859808 in words is "six million, eight hundred fifty-nine thousand, eight hundred eight".