3665305 has 8 divisors (see below), whose sum is σ = 5026752. Its totient is φ = 2513328.

The previous prime is 3665297. The next prime is 3665317. The reversal of 3665305 is 5035663.

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

It is a cyclic number.

It is not a de Polignac number, because 3665305 - 2³ = 3665297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52327 + ... + 52396.

It is an arithmetic number, because the mean of its divisors is an integer number (628344).

Almost surely, 2^3665305 is an apocalyptic number.

3665305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3665305 is a deficient number, since it is larger than the sum of its proper divisors (1361447).

3665305 is a wasteful number, since it uses less digits than its factorization.

3665305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104735.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 3665305 is about 1914.4986288843. The cubic root of 3665305 is about 154.1830762502.

Adding to 3665305 its product of nonzero digits (8100), we get a triangular number (3673405 = T₂₇₁₀).

It can be divided in two parts, 366 and 5305, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 3665305 in words is "three million, six hundred sixty-five thousand, three hundred five".