6851406 has 8 divisors (see below), whose sum is σ = 13702824. Its totient is φ = 2283800.

The previous prime is 6851347. The next prime is 6851407. The reversal of 6851406 is 6041586.

It is a sphenic number, since it is the product of 3 distinct primes.

6851406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6851407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 570945 + ... + 570956.

It is an arithmetic number, because the mean of its divisors is an integer number (1712853).

Almost surely, 2^6851406 is an apocalyptic number.

6851406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6851406 is a wasteful number, since it uses less digits than its factorization.

6851406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141906.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 6851406 is about 2617.5190543719. The cubic root of 6851406 is about 189.9298540691.

The spelling of 6851406 in words is "six million, eight hundred fifty-one thousand, four hundred six".