6856437 has 8 divisors (see below), whose sum is σ = 10447936. Its totient is φ = 3917952.

The previous prime is 6856429. The next prime is 6856459. The reversal of 6856437 is 7346586.

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

It is not a de Polignac number, because 6856437 - 2³ = 6856429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6856395 and 6856404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6856477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163228 + ... + 163269.

It is an arithmetic number, because the mean of its divisors is an integer number (1305992).

Almost surely, 2^6856437 is an apocalyptic number.

It is an amenable number.

6856437 is a deficient number, since it is larger than the sum of its proper divisors (3591499).

6856437 is a wasteful number, since it uses less digits than its factorization.

6856437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326507.

The product of its digits is 120960, while the sum is 39.

The square root of 6856437 is about 2618.4799025389. The cubic root of 6856437 is about 189.9763313084.

The spelling of 6856437 in words is "six million, eight hundred fifty-six thousand, four hundred thirty-seven".