5424809 has 4 divisors (see below), whose sum is σ = 5842116. Its totient is φ = 5007504.

The previous prime is 5424799. The next prime is 5424847. The reversal of 5424809 is 9084245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9084245 = 5 ⋅1816849.

It can be written as a sum of positive squares in 2 ways, for example, as 3258025 + 2166784 = 1805^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 5424809 - 2⁸ = 5424553 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5424869) 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, 208634 + ... + 208659.

It is an arithmetic number, because the mean of its divisors is an integer number (1460529).

Almost surely, 2^5424809 is an apocalyptic number.

It is an amenable number.

5424809 is a deficient number, since it is larger than the sum of its proper divisors (417307).

5424809 is a wasteful number, since it uses less digits than its factorization.

5424809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417306.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 5424809 is about 2329.1219375550. The cubic root of 5424809 is about 175.7093277986.

The spelling of 5424809 in words is "five million, four hundred twenty-four thousand, eight hundred nine".