6880664 has 16 divisors (see below), whose sum is σ = 14744400. Its totient is φ = 2948832.

The previous prime is 6880651. The next prime is 6880673. The reversal of 6880664 is 4660886.

6880664 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61379 + ... + 61490.

It is an arithmetic number, because the mean of its divisors is an integer number (921525).

Almost surely, 2^6880664 is an apocalyptic number.

It is an amenable number.

6880664 is an abundant number, since it is smaller than the sum of its proper divisors (7863736).

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

6880664 is a wasteful number, since it uses less digits than its factorization.

6880664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122882 (or 122878 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 6880664 is about 2623.1019804804. The cubic root of 6880664 is about 190.1998266991.

The spelling of 6880664 in words is "six million, eight hundred eighty thousand, six hundred sixty-four".