6856988 has 24 divisors (see below), whose sum is σ = 12467952. Its totient is φ = 3297024.

The previous prime is 6856973. The next prime is 6856999. The reversal of 6856988 is 8896586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15620 + ... + 16052.

It is an arithmetic number, because the mean of its divisors is an integer number (519498).

Almost surely, 2^6856988 is an apocalyptic number.

It is an amenable number.

6856988 is a deficient number, since it is larger than the sum of its proper divisors (5610964).

6856988 is a wasteful number, since it uses less digits than its factorization.

6856988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 579 counting only the distinct ones).

The product of its digits is 829440, while the sum is 50.

The square root of 6856988 is about 2618.5851141408. The cubic root of 6856988 is about 189.9814201592.

The spelling of 6856988 in words is "six million, eight hundred fifty-six thousand, nine hundred eighty-eight".