6844545 has 24 divisors (see below), whose sum is σ = 12004200. Its totient is φ = 3607296.

The previous prime is 6844543. The next prime is 6844549. The reversal of 6844545 is 5454486.

It can be written as a sum of positive squares in 4 ways, for example, as 1089 + 6843456 = 33^2 + 2616^2 .

It is not a de Polignac number, because 6844545 - 2¹ = 6844543 is a prime.

6844545 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6844543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3151 + ... + 4859.

It is an arithmetic number, because the mean of its divisors is an integer number (500175).

Almost surely, 2^6844545 is an apocalyptic number.

It is an amenable number.

6844545 is a deficient number, since it is larger than the sum of its proper divisors (5159655).

6844545 is a wasteful number, since it uses less digits than its factorization.

6844545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809 (or 1806 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 6844545 is about 2616.2081339221. The cubic root of 6844545 is about 189.8664342908.

It can be divided in two parts, 68445 and 45, that multiplied together give a square (3080025 = 1755²).

The spelling of 6844545 in words is "six million, eight hundred forty-four thousand, five hundred forty-five".