564108217 has 4 divisors (see below), whose sum is σ = 577866996. Its totient is φ = 550349440.

The previous prime is 564108199. The next prime is 564108227. The reversal of 564108217 is 712801465.

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 102030201 + 462078016 = 10101^2 + 21496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564108217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564108227) 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, 6879328 + ... + 6879409.

It is an arithmetic number, because the mean of its divisors is an integer number (144466749).

Almost surely, 2^564108217 is an apocalyptic number.

It is an amenable number.

564108217 is a deficient number, since it is larger than the sum of its proper divisors (13758779).

564108217 is a wasteful number, since it uses less digits than its factorization.

564108217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13758778.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 564108217 is about 23750.9624436569. The cubic root of 564108217 is about 826.2677622724.

The spelling of 564108217 in words is "five hundred sixty-four million, one hundred eight thousand, two hundred seventeen".