686737

Properties

Appears in sequences

• Solutions k of the equation phi(k) = phi(k-1) + phi(k-2). Also known as Phibonacci numbers.at n=38A065557
• Primes p such that phi(p) = phi(p-2) + phi(p-1); Phibonacci primes.at n=24A266164
• Prime numbersat n=55560