5657766 has 16 divisors (see below), whose sum is σ = 11556864. Its totient is φ = 1845704.

The previous prime is 5657761. The next prime is 5657767. The reversal of 5657766 is 6677565.

It is a super-2 number, since 2×5657766² = 64020632221512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5657761) 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 in 7 ways as a sum of consecutive naturals, for example, 9750 + ... + 10313.

It is an arithmetic number, because the mean of its divisors is an integer number (722304).

Almost surely, 2^5657766 is an apocalyptic number.

5657766 is an abundant number, since it is smaller than the sum of its proper divisors (5899098).

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

5657766 is a wasteful number, since it uses less digits than its factorization.

5657766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20115.

The product of its digits is 264600, while the sum is 42.

The square root of 5657766 is about 2378.6058942162. The cubic root of 5657766 is about 178.1893158943.

The spelling of 5657766 in words is "five million, six hundred fifty-seven thousand, seven hundred sixty-six".