3686825 has 12 divisors (see below), whose sum is σ = 4625820. Its totient is φ = 2914560.

The previous prime is 3686801. The next prime is 3686833. The reversal of 3686825 is 5286863.

It can be written as a sum of positive squares in 6 ways, for example, as 561001 + 3125824 = 749^2 + 1768^2 .

It is not a de Polignac number, because 3686825 - 2¹² = 3682729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1397 + ... + 3053.

It is an arithmetic number, because the mean of its divisors is an integer number (385485).

Almost surely, 2^3686825 is an apocalyptic number.

It is an amenable number.

3686825 is a deficient number, since it is larger than the sum of its proper divisors (938995).

3686825 is a wasteful number, since it uses less digits than its factorization.

3686825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756 (or 1751 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 3686825 is about 1920.1106738936. The cubic root of 3686825 is about 154.4842378393.

Adding to 3686825 its sum of digits (38), we get a palindrome (3686863).

The spelling of 3686825 in words is "three million, six hundred eighty-six thousand, eight hundred twenty-five".