566406949 has 2 divisors, whose sum is σ = 566406950. Its totient is φ = 566406948.

The previous prime is 566406913. The next prime is 566406977. The reversal of 566406949 is 949604665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501088225 + 65318724 = 22385^2 + 8082^2 .

It is a cyclic number.

It is not a de Polignac number, because 566406949 - 2⁹ = 566406437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566406979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283203474 + 283203475.

It is an arithmetic number, because the mean of its divisors is an integer number (283203475).

Almost surely, 2^566406949 is an apocalyptic number.

It is an amenable number.

566406949 is a deficient number, since it is larger than the sum of its proper divisors (1).

566406949 is an equidigital number, since it uses as much as digits as its factorization.

566406949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The square root of 566406949 is about 23799.3056411316. The cubic root of 566406949 is about 827.3885838621.

The spelling of 566406949 in words is "five hundred sixty-six million, four hundred six thousand, nine hundred forty-nine".