6409243 has 8 divisors (see below), whose sum is σ = 6604416. Its totient is φ = 6216000.

The previous prime is 6409223. The next prime is 6409253. The reversal of 6409243 is 3429046.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6409243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6409223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8793 + ... + 9493.

It is an arithmetic number, because the mean of its divisors is an integer number (825552).

Almost surely, 2^6409243 is an apocalyptic number.

6409243 is a deficient number, since it is larger than the sum of its proper divisors (195173).

6409243 is a wasteful number, since it uses less digits than its factorization.

6409243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 6409243 is about 2531.6482773087. The cubic root of 6409243 is about 185.7528899461.

The spelling of 6409243 in words is "six million, four hundred nine thousand, two hundred forty-three".