564843497 has 2 divisors, whose sum is σ = 564843498. Its totient is φ = 564843496.

The previous prime is 564843463. The next prime is 564843551. The reversal of 564843497 is 794348465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 425225641 + 139617856 = 20621^2 + 11816^2 .

It is a cyclic number.

It is not a de Polignac number, because 564843497 - 2²⁰ = 563794921 is a prime.

It is a super-2 number, since 2×564843497² = 638096352206378018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (564843427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282421748 + 282421749.

It is an arithmetic number, because the mean of its divisors is an integer number (282421749).

Almost surely, 2^564843497 is an apocalyptic number.

It is an amenable number.

564843497 is a deficient number, since it is larger than the sum of its proper divisors (1).

564843497 is an equidigital number, since it uses as much as digits as its factorization.

564843497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 50.

The square root of 564843497 is about 23766.4363546578. The cubic root of 564843497 is about 826.6266026333.

The spelling of 564843497 in words is "five hundred sixty-four million, eight hundred forty-three thousand, four hundred ninety-seven".