5456809 has 4 divisors (see below), whose sum is σ = 5499904. Its totient is φ = 5413716.

The previous prime is 5456807. The next prime is 5456821. The reversal of 5456809 is 9086545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5456809 - 2¹ = 5456807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5456807) 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 3 ways as a sum of consecutive naturals, for example, 21357 + ... + 21610.

It is an arithmetic number, because the mean of its divisors is an integer number (1374976).

Almost surely, 2^5456809 is an apocalyptic number.

It is an amenable number.

5456809 is a deficient number, since it is larger than the sum of its proper divisors (43095).

5456809 is a wasteful number, since it uses less digits than its factorization.

5456809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43094.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 5456809 is about 2335.9813783504. The cubic root of 5456809 is about 176.0541435520.

The spelling of 5456809 in words is "five million, four hundred fifty-six thousand, eight hundred nine".