3566642 has 16 divisors (see below), whose sum is σ = 5754240. Its totient is φ = 1652688.

The previous prime is 3566599. The next prime is 3566659. The reversal of 3566642 is 2466653.

3566642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 3¹³ + 5⁹ + 6³ + 6⁴ + 6⁴ + 4⁷ + 2 .

It is a junction number, because it is equal to n+sod(n) for n = 3566599 and 3566608.

It is an unprimeable number.

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, 788 + ... + 2784.

It is an arithmetic number, because the mean of its divisors is an integer number (359640).

Almost surely, 2^3566642 is an apocalyptic number.

3566642 is a deficient number, since it is larger than the sum of its proper divisors (2187598).

3566642 is a wasteful number, since it uses less digits than its factorization.

3566642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065.

The product of its digits is 25920, while the sum is 32.

The square root of 3566642 is about 1888.5555326757. Note that the first 4 decimals coincide. The cubic root of 3566642 is about 152.7870362164.

The spelling of 3566642 in words is "three million, five hundred sixty-six thousand, six hundred forty-two".