5775866 has 4 divisors (see below), whose sum is σ = 8663802. Its totient is φ = 2887932.

The previous prime is 5775863. The next prime is 5775881. The reversal of 5775866 is 6685775.

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

It can be written as a sum of positive squares in only one way, i.e., 4532641 + 1243225 = 2129^2 + 1115^2 .

It is not an unprimeable number, because it can be changed into a prime (5775863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1443965 + ... + 1443968.

Almost surely, 2^5775866 is an apocalyptic number.

5775866 is a deficient number, since it is larger than the sum of its proper divisors (2887936).

5775866 is a wasteful number, since it uses less digits than its factorization.

5775866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887935.

The product of its digits is 352800, while the sum is 44.

The square root of 5775866 is about 2403.3031435922. The cubic root of 5775866 is about 179.4206268615.

Subtracting 5775866 from its reverse (6685775), we obtain a palindrome (909909).

The spelling of 5775866 in words is "five million, seven hundred seventy-five thousand, eight hundred sixty-six".