5457809 has 8 divisors (see below), whose sum is σ = 6254208. Its totient is φ = 4665600.

The previous prime is 5457773. The next prime is 5457811. The reversal of 5457809 is 9087545.

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 5457809 - 2¹² = 5453713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5457839) 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, 2609 + ... + 4209.

It is an arithmetic number, because the mean of its divisors is an integer number (781776).

Almost surely, 2^5457809 is an apocalyptic number.

It is an amenable number.

5457809 is a deficient number, since it is larger than the sum of its proper divisors (796399).

5457809 is a wasteful number, since it uses less digits than its factorization.

5457809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 5457809 is about 2336.1954113473. The cubic root of 5457809 is about 176.0648972965.

The spelling of 5457809 in words is "five million, four hundred fifty-seven thousand, eight hundred nine".