567409 has 4 divisors (see below), whose sum is σ = 600804. Its totient is φ = 534016.

The previous prime is 567407. The next prime is 567439. The reversal of 567409 is 904765.

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 429025 + 138384 = 655^2 + 372^2 .

It is a cyclic number.

It is not a de Polignac number, because 567409 - 2¹ = 567407 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.

It is not an unprimeable number, because it can be changed into a prime (567401) 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, 16672 + ... + 16705.

It is an arithmetic number, because the mean of its divisors is an integer number (150201).

2⁵⁶⁷⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

567409 is a deficient number, since it is larger than the sum of its proper divisors (33395).

567409 is a wasteful number, since it uses less digits than its factorization.

567409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33394.

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

The square root of 567409 is about 753.2655574231. The cubic root of 567409 is about 82.7876217425.

The spelling of 567409 in words is "five hundred sixty-seven thousand, four hundred nine".