565417 has 4 divisors (see below), whose sum is σ = 571860. Its totient is φ = 558976.

The previous prime is 565393. The next prime is 565427. The reversal of 565417 is 714565.

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 179776 + 385641 = 424^2 + 621^2 .

It is a cyclic number.

It is not a de Polignac number, because 565417 - 2⁷ = 565289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (565427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088 + ... + 3265.

It is an arithmetic number, because the mean of its divisors is an integer number (142965).

2⁵⁶⁵⁴¹⁷ is an apocalyptic number.

It is an amenable number.

565417 is a deficient number, since it is larger than the sum of its proper divisors (6443).

565417 is an equidigital number, since it uses as much as digits as its factorization.

565417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442.

The product of its digits is 4200, while the sum is 28.

The square root of 565417 is about 751.9421520303. The cubic root of 565417 is about 82.6906274485.

It can be divided in two parts, 5654 and 17, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 565417 in words is "five hundred sixty-five thousand, four hundred seventeen".