5724809 has 2 divisors, whose sum is σ = 5724810. Its totient is φ = 5724808.

The previous prime is 5724799. The next prime is 5724811. The reversal of 5724809 is 9084275.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3888784 + 1836025 = 1972^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 5724809 - 2⁴ = 5724793 is a prime.

Together with 5724811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5724109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2862404 + 2862405.

It is an arithmetic number, because the mean of its divisors is an integer number (2862405).

Almost surely, 2^5724809 is an apocalyptic number.

It is an amenable number.

5724809 is a deficient number, since it is larger than the sum of its proper divisors (1).

5724809 is an equidigital number, since it uses as much as digits as its factorization.

5724809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 5724809 is about 2392.6573093529. The cubic root of 5724809 is about 178.8903857465.

The spelling of 5724809 in words is "five million, seven hundred twenty-four thousand, eight hundred nine".