5724339809 has 4 divisors (see below), whose sum is σ = 5724702660. Its totient is φ = 5723976960.

The previous prime is 5724339781. The next prime is 5724339827. The reversal of 5724339809 is 9089334275.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5331190225 + 393149584 = 73015^2 + 19828^2 .

It is a cyclic number.

It is not a de Polignac number, because 5724339809 - 2⁸ = 5724339553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5724335809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156632 + ... + 189689.

It is an arithmetic number, because the mean of its divisors is an integer number (1431175665).

Almost surely, 2^5724339809 is an apocalyptic number.

It is an amenable number.

5724339809 is a deficient number, since it is larger than the sum of its proper divisors (362851).

5724339809 is a wasteful number, since it uses less digits than its factorization.

5724339809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362850.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The square root of 5724339809 is about 75659.3669614014. The cubic root of 5724339809 is about 1788.8549847705.

The spelling of 5724339809 in words is "five billion, seven hundred twenty-four million, three hundred thirty-nine thousand, eight hundred nine".