6543345 has 16 divisors (see below), whose sum is σ = 10532160. Its totient is φ = 3468864.

The previous prime is 6543343. The next prime is 6543347. The reversal of 6543345 is 5433456.

It is an interprime number because it is at equal distance from previous prime (6543343) and next prime (6543347).

It is not a de Polignac number, because 6543345 - 2¹ = 6543343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6543343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1467 + ... + 3903.

It is an arithmetic number, because the mean of its divisors is an integer number (658260).

Almost surely, 2^6543345 is an apocalyptic number.

It is an amenable number.

6543345 is a deficient number, since it is larger than the sum of its proper divisors (3988815).

6543345 is a wasteful number, since it uses less digits than its factorization.

6543345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624.

The product of its digits is 21600, while the sum is 30.

The square root of 6543345 is about 2557.9962861584. The cubic root of 6543345 is about 187.0394742560.

The spelling of 6543345 in words is "six million, five hundred forty-three thousand, three hundred forty-five".