6543424 has 14 divisors (see below), whose sum is σ = 12984734. Its totient is φ = 3271680.

The previous prime is 6543403. The next prime is 6543443. The reversal of 6543424 is 4243456.

It can be written as a sum of positive squares in only one way, i.e., 5953600 + 589824 = 2440^2 + 768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6543392 and 6543401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51057 + ... + 51184.

It is an arithmetic number, because the mean of its divisors is an integer number (927481).

Almost surely, 2^6543424 is an apocalyptic number.

6543424 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6543424 is a deficient number, since it is larger than the sum of its proper divisors (6441310).

6543424 is a wasteful number, since it uses less digits than its factorization.

6543424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102253 (or 102243 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 6543424 is about 2558.0117278855. The cubic root of 6543424 is about 187.0402269831.

Subtracting from 6543424 its reverse (4243456), we obtain a cube (2299968 = 132³).

The spelling of 6543424 in words is "six million, five hundred forty-three thousand, four hundred twenty-four".