6851047 has 8 divisors (see below), whose sum is σ = 8100000. Its totient is φ = 5669664.

The previous prime is 6851023. The next prime is 6851057. The reversal of 6851047 is 7401586.

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

It is a de Polignac number, because none of the positive numbers 2^k-6851047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6851057) 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, 16672 + ... + 17077.

It is an arithmetic number, because the mean of its divisors is an integer number (1012500).

Almost surely, 2^6851047 is an apocalyptic number.

6851047 is a deficient number, since it is larger than the sum of its proper divisors (1248953).

6851047 is a wasteful number, since it uses less digits than its factorization.

6851047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33785.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 6851047 is about 2617.4504770864. The cubic root of 6851047 is about 189.9265366961.

It can be divided in two parts, 68 and 51047, that added together give a palindrome (51115).

The spelling of 6851047 in words is "six million, eight hundred fifty-one thousand, forty-seven".