566776 has 32 divisors (see below), whose sum is σ = 1260000. Its totient is φ = 233856.

The previous prime is 566767. The next prime is 566791. The reversal of 566776 is 677665.

566776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1450 + ... + 1798.

It is an arithmetic number, because the mean of its divisors is an integer number (39375).

2⁵⁶⁶⁷⁷⁶ is an apocalyptic number.

566776 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630000).

566776 is an abundant number, since it is smaller than the sum of its proper divisors (693224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

566776 is a wasteful number, since it uses less digits than its factorization.

566776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 387 counting only the distinct ones).

The product of its digits is 52920, while the sum is 37.

The square root of 566776 is about 752.8452696272. The cubic root of 566776 is about 82.7568244023.

Subtracting 566776 from its reverse (677665), we obtain a square (110889 = 333²).

It can be divided in two parts, 56 and 6776, that multiplied together give a square (379456 = 616²).

The spelling of 566776 in words is "five hundred sixty-six thousand, seven hundred seventy-six".