566783963 has 4 divisors (see below), whose sum is σ = 591426768. Its totient is φ = 542141160.

The previous prime is 566783957. The next prime is 566783981. The reversal of 566783963 is 369387665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 566783963 - 2⁴ = 566783947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (566783993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12321368 + ... + 12321413.

It is an arithmetic number, because the mean of its divisors is an integer number (147856692).

Almost surely, 2^566783963 is an apocalyptic number.

566783963 is a deficient number, since it is larger than the sum of its proper divisors (24642805).

566783963 is a wasteful number, since it uses less digits than its factorization.

566783963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24642804.

The product of its digits is 4898880, while the sum is 53.

The square root of 566783963 is about 23807.2250167885. The cubic root of 566783963 is about 827.5721196837.

The spelling of 566783963 in words is "five hundred sixty-six million, seven hundred eighty-three thousand, nine hundred sixty-three".