566964387 has 16 divisors (see below), whose sum is σ = 916306560. Its totient is φ = 343614600.

The previous prime is 566964379. The next prime is 566964397. The reversal of 566964387 is 783469665.

It is not a de Polignac number, because 566964387 - 2³ = 566964379 is a prime.

It is a super-2 number, since 2×566964387² = 642897232252571538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (566964347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954189 + ... + 954782.

It is an arithmetic number, because the mean of its divisors is an integer number (57269160).

Almost surely, 2^566964387 is an apocalyptic number.

566964387 is a deficient number, since it is larger than the sum of its proper divisors (349342173).

566964387 is a wasteful number, since it uses less digits than its factorization.

566964387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908991 (or 1908985 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 566964387 is about 23811.0139851288. The cubic root of 566964387 is about 827.6599238801.

The spelling of 566964387 in words is "five hundred sixty-six million, nine hundred sixty-four thousand, three hundred eighty-seven".