3605866 has 16 divisors (see below), whose sum is σ = 5933088. Its totient is φ = 1630000.

The previous prime is 3605857. The next prime is 3605867. The reversal of 3605866 is 6685063.

3605866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3605867) 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, 5196 + ... + 5848.

It is an arithmetic number, because the mean of its divisors is an integer number (370818).

Almost surely, 2^3605866 is an apocalyptic number.

3605866 is a deficient number, since it is larger than the sum of its proper divisors (2327222).

3605866 is a wasteful number, since it uses less digits than its factorization.

3605866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 3605866 is about 1898.9117936334. The cubic root of 3605866 is about 153.3450852156.

It can be divided in two parts, 360 and 5866, that added together give a palindrome (6226).

The spelling of 3605866 in words is "three million, six hundred five thousand, eight hundred sixty-six".