3685285 has 8 divisors (see below), whose sum is σ = 4530456. Its totient is φ = 2876160.

The previous prime is 3685273. The next prime is 3685289. The reversal of 3685285 is 5825863.

It can be written as a sum of positive squares in 4 ways, for example, as 6561 + 3678724 = 81^2 + 1918^2 .

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

It is not a de Polignac number, because 3685285 - 2²¹ = 1588133 is a prime.

It is a d-powerful number, because it can be written as 3⁹ + 6⁸ + 8² + 5² + 2² + 8⁵ + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8784 + ... + 9193.

It is an arithmetic number, because the mean of its divisors is an integer number (566307).

Almost surely, 2^3685285 is an apocalyptic number.

It is an amenable number.

3685285 is a deficient number, since it is larger than the sum of its proper divisors (845171).

3685285 is a wasteful number, since it uses less digits than its factorization.

3685285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18023.

The product of its digits is 57600, while the sum is 37.

The square root of 3685285 is about 1919.7096134572. The cubic root of 3685285 is about 154.4627253040.

The spelling of 3685285 in words is "three million, six hundred eighty-five thousand, two hundred eighty-five".