5611866 has 16 divisors (see below), whose sum is σ = 12087264. Its totient is φ = 1726704.

The previous prime is 5611849. The next prime is 5611867. The reversal of 5611866 is 6681165.

It is not an unprimeable number, because it can be changed into a prime (5611867) 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, 35896 + ... + 36051.

It is an arithmetic number, because the mean of its divisors is an integer number (755454).

Almost surely, 2^5611866 is an apocalyptic number.

5611866 is an abundant number, since it is smaller than the sum of its proper divisors (6475398).

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

5611866 is a wasteful number, since it uses less digits than its factorization.

5611866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71965.

The product of its digits is 8640, while the sum is 33.

The square root of 5611866 is about 2368.9377366237. The cubic root of 5611866 is about 177.7061388729.

The spelling of 5611866 in words is "five million, six hundred eleven thousand, eight hundred sixty-six".