5624809 has 4 divisors (see below), whose sum is σ = 5666004. Its totient is φ = 5583616.

The previous prime is 5624803. The next prime is 5624821. The reversal of 5624809 is 9084265.

It is a happy number.

5624809 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9084265 = 5 ⋅1816853.

It can be written as a sum of positive squares in 2 ways, for example, as 1763584 + 3861225 = 1328^2 + 1965^2 .

It is a cyclic number.

It is not a de Polignac number, because 5624809 - 2¹¹ = 5622761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5624803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20392 + ... + 20665.

It is an arithmetic number, because the mean of its divisors is an integer number (1416501).

Almost surely, 2^5624809 is an apocalyptic number.

It is an amenable number.

5624809 is a deficient number, since it is larger than the sum of its proper divisors (41195).

5624809 is a wasteful number, since it uses less digits than its factorization.

5624809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41194.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 5624809 is about 2371.6679784489. The cubic root of 5624809 is about 177.8426522636.

The spelling of 5624809 in words is "five million, six hundred twenty-four thousand, eight hundred nine".