566644349 has 2 divisors, whose sum is σ = 566644350. Its totient is φ = 566644348.

The previous prime is 566644343. The next prime is 566644363. The reversal of 566644349 is 943446665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 562021849 + 4622500 = 23707^2 + 2150^2 .

It is a cyclic number.

It is not a de Polignac number, because 566644349 - 2¹⁶ = 566578813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566644343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283322174 + 283322175.

It is an arithmetic number, because the mean of its divisors is an integer number (283322175).

Almost surely, 2^566644349 is an apocalyptic number.

It is an amenable number.

566644349 is a deficient number, since it is larger than the sum of its proper divisors (1).

566644349 is an equidigital number, since it uses as much as digits as its factorization.

566644349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 47.

The square root of 566644349 is about 23804.2926590983. The cubic root of 566644349 is about 827.5041630785.

The spelling of 566644349 in words is "five hundred sixty-six million, six hundred forty-four thousand, three hundred forty-nine".