6845847 has 8 divisors (see below), whose sum is σ = 9277680. Its totient is φ = 4488960.

The previous prime is 6845843. The next prime is 6845869. The reversal of 6845847 is 7485486.

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

It is not a de Polignac number, because 6845847 - 2² = 6845843 is a prime.

It is a super-2 number, since 2×6845847² = 93731242294818, which contains 22 as substring.

It is an Ulam number.

6845847 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6845799 and 6845808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6845843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18522 + ... + 18887.

It is an arithmetic number, because the mean of its divisors is an integer number (1159710).

Almost surely, 2^6845847 is an apocalyptic number.

6845847 is a deficient number, since it is larger than the sum of its proper divisors (2431833).

6845847 is a wasteful number, since it uses less digits than its factorization.

6845847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37473.

The product of its digits is 215040, while the sum is 42.

The square root of 6845847 is about 2616.4569555030. The cubic root of 6845847 is about 189.8784726087.

The spelling of 6845847 in words is "six million, eight hundred forty-five thousand, eight hundred forty-seven".