566011987 has 2 divisors, whose sum is σ = 566011988. Its totient is φ = 566011986.

The previous prime is 566011973. The next prime is 566012003. The reversal of 566011987 is 789110665.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566011987 is a prime.

It is not a weakly prime, because it can be changed into another prime (566015987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283005993 + 283005994.

It is an arithmetic number, because the mean of its divisors is an integer number (283005994).

Almost surely, 2^566011987 is an apocalyptic number.

566011987 is a deficient number, since it is larger than the sum of its proper divisors (1).

566011987 is an equidigital number, since it uses as much as digits as its factorization.

566011987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 566011987 is about 23791.0064310025. The cubic root of 566011987 is about 827.1962233239.

The spelling of 566011987 in words is "five hundred sixty-six million, eleven thousand, nine hundred eighty-seven".