6856983 has 24 divisors (see below), whose sum is σ = 11687936. Its totient is φ = 3790800.

The previous prime is 6856973. The next prime is 6856999. The reversal of 6856983 is 3896586.

6856983 is a `hidden beast` number, since 6 + 8 + 569 + 83 = 666.

It is not a de Polignac number, because 6856983 - 2⁶ = 6856919 is a prime.

It is a Duffinian number.

6856983 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6856973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198 + ... + 3708.

Almost surely, 2^6856983 is an apocalyptic number.

6856983 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6856983 is a deficient number, since it is larger than the sum of its proper divisors (4830953).

6856983 is a wasteful number, since it uses less digits than its factorization.

6856983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555 (or 3552 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 6856983 is about 2618.5841594266. The cubic root of 6856983 is about 189.9813739821.

The spelling of 6856983 in words is "six million, eight hundred fifty-six thousand, nine hundred eighty-three".