6886445 has 8 divisors (see below), whose sum is σ = 8749944. Its totient is φ = 5185024.

The previous prime is 6886441. The next prime is 6886447. The reversal of 6886445 is 5446886.

It can be written as a sum of positive squares in 4 ways, for example, as 3511876 + 3374569 = 1874^2 + 1837^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6886445 - 2² = 6886441 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 (6886441) 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, 40424 + ... + 40593.

It is an arithmetic number, because the mean of its divisors is an integer number (1093743).

Almost surely, 2^6886445 is an apocalyptic number.

It is an amenable number.

6886445 is a deficient number, since it is larger than the sum of its proper divisors (1863499).

6886445 is a wasteful number, since it uses less digits than its factorization.

6886445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81039.

The product of its digits is 184320, while the sum is 41.

The square root of 6886445 is about 2624.2036887406. The cubic root of 6886445 is about 190.2530791858.

The spelling of 6886445 in words is "six million, eight hundred eighty-six thousand, four hundred forty-five".