5656866 has 8 divisors (see below), whose sum is σ = 11313744. Its totient is φ = 1885620.

The previous prime is 5656837. The next prime is 5656921. The reversal of 5656866 is 6686565.

It is a sphenic number, since it is the product of 3 distinct primes.

5656866 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471400 + ... + 471411.

It is an arithmetic number, because the mean of its divisors is an integer number (1414218).

Almost surely, 2^5656866 is an apocalyptic number.

5656866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5656866 is a wasteful number, since it uses less digits than its factorization.

5656866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942816.

The product of its digits is 259200, while the sum is 42.

The square root of 5656866 is about 2378.4167002441. The cubic root of 5656866 is about 178.1798670006.

The spelling of 5656866 in words is "five million, six hundred fifty-six thousand, eight hundred sixty-six".