566910749 has 2 divisors, whose sum is σ = 566910750. Its totient is φ = 566910748.

The previous prime is 566910727. The next prime is 566910761. The reversal of 566910749 is 947019665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 434430649 + 132480100 = 20843^2 + 11510^2 .

It is a cyclic number.

It is not a de Polignac number, because 566910749 - 2⁸ = 566910493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566910769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283455374 + 283455375.

It is an arithmetic number, because the mean of its divisors is an integer number (283455375).

Almost surely, 2^566910749 is an apocalyptic number.

It is an amenable number.

566910749 is a deficient number, since it is larger than the sum of its proper divisors (1).

566910749 is an equidigital number, since it uses as much as digits as its factorization.

566910749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 566910749 is about 23809.8876309822. The cubic root of 566910749 is about 827.6338226387.

The spelling of 566910749 in words is "five hundred sixty-six million, nine hundred ten thousand, seven hundred forty-nine".