3685901 has 4 divisors (see below), whose sum is σ = 3690204. Its totient is φ = 3681600.

The previous prime is 3685883. The next prime is 3685949. The reversal of 3685901 is 1095863.

3685901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1357225 + 2328676 = 1165^2 + 1526^2 .

It is a cyclic number.

It is not a de Polignac number, because 3685901 - 2⁶ = 3685837 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685951) 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 3 ways as a sum of consecutive naturals, for example, 380 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (922551).

Almost surely, 2^3685901 is an apocalyptic number.

It is an amenable number.

3685901 is a deficient number, since it is larger than the sum of its proper divisors (4303).

3685901 is a wasteful number, since it uses less digits than its factorization.

3685901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 3685901 is about 1919.8700476855. The cubic root of 3685901 is about 154.4713310371.

The spelling of 3685901 in words is "three million, six hundred eighty-five thousand, nine hundred one".