576409 has 4 divisors (see below), whose sum is σ = 581904. Its totient is φ = 570916.

The previous prime is 576391. The next prime is 576421. The reversal of 576409 is 904675.

576409 is digitally balanced in base 2, 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 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 576409 - 2⁵ = 576377 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

576409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (576439) 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, 2587 + ... + 2800.

It is an arithmetic number, because the mean of its divisors is an integer number (145476).

2⁵⁷⁶⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

576409 is a deficient number, since it is larger than the sum of its proper divisors (5495).

576409 is a wasteful number, since it uses less digits than its factorization.

576409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 576409 is about 759.2160430339. The cubic root of 576409 is about 83.2230416489.

The spelling of 576409 in words is "five hundred seventy-six thousand, four hundred nine".