566942689 has 8 divisors (see below), whose sum is σ = 569662560. Its totient is φ = 564230016.

The previous prime is 566942683. The next prime is 566942693. The reversal of 566942689 is 986249665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 566942689 - 2⁵ = 566942657 is a prime.

It is a super-2 number, since 2×566942689² = 642848025221101442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (566942683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212049 + ... + 214705.

It is an arithmetic number, because the mean of its divisors is an integer number (71207820).

Almost surely, 2^566942689 is an apocalyptic number.

It is an amenable number.

566942689 is a deficient number, since it is larger than the sum of its proper divisors (2719871).

566942689 is a wasteful number, since it uses less digits than its factorization.

566942689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599.

The product of its digits is 5598720, while the sum is 55.

The square root of 566942689 is about 23810.5583512861. The cubic root of 566942689 is about 827.6493654309.

The spelling of 566942689 in words is "five hundred sixty-six million, nine hundred forty-two thousand, six hundred eighty-nine".