5647809 has 8 divisors (see below), whose sum is σ = 7562880. Its totient is φ = 3748976.

The previous prime is 5647801. The next prime is 5647813. The reversal of 5647809 is 9087465.

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 5647809 - 2³ = 5647801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5647801) 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, 3222 + ... + 4655.

It is an arithmetic number, because the mean of its divisors is an integer number (945360).

Almost surely, 2^5647809 is an apocalyptic number.

It is an amenable number.

5647809 is a deficient number, since it is larger than the sum of its proper divisors (1915071).

5647809 is a wasteful number, since it uses less digits than its factorization.

5647809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8119.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 5647809 is about 2376.5119397975. The cubic root of 5647809 is about 178.0847237962.

The spelling of 5647809 in words is "five million, six hundred forty-seven thousand, eight hundred nine".