6843455 has 8 divisors (see below), whose sum is σ = 8230992. Its totient is φ = 5462208.

The previous prime is 6843451. The next prime is 6843461. The reversal of 6843455 is 5543486.

6843455 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 2616²-1.

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 6843455 - 2² = 6843451 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 (6843451) 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, 1307 + ... + 3923.

It is an arithmetic number, because the mean of its divisors is an integer number (1028874).

Almost surely, 2^6843455 is an apocalyptic number.

6843455 is a deficient number, since it is larger than the sum of its proper divisors (1387537).

6843455 is a wasteful number, since it uses less digits than its factorization.

6843455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145.

The product of its digits is 57600, while the sum is 35.

The square root of 6843455 is about 2615.9998088685. Note that the first 3 decimals coincide. The cubic root of 6843455 is about 189.8563549551.

The spelling of 6843455 in words is "six million, eight hundred forty-three thousand, four hundred fifty-five".