3685305 has 16 divisors (see below), whose sum is σ = 6350400. Its totient is φ = 1814208.

The previous prime is 3685303. The next prime is 3685309. The reversal of 3685305 is 5035863.

It is not a de Polignac number, because 3685305 - 2¹ = 3685303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3685301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9255 + ... + 9644.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

Almost surely, 2^3685305 is an apocalyptic number.

It is an amenable number.

3685305 is a deficient number, since it is larger than the sum of its proper divisors (2665095).

3685305 is a wasteful number, since it uses less digits than its factorization.

3685305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18920.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 3685305 is about 1919.7148225713. The cubic root of 3685305 is about 154.4630047260.

The spelling of 3685305 in words is "three million, six hundred eighty-five thousand, three hundred five".