3685625 has 10 divisors (see below), whose sum is σ = 4606338. Its totient is φ = 2948000.

The previous prime is 3685597. The next prime is 3685631. The reversal of 3685625 is 5265863.

It can be written as a sum of positive squares in 5 ways, for example, as 633616 + 3052009 = 796^2 + 1747^2 .

It is not a de Polignac number, because 3685625 - 2⁸ = 3685369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 2324 + ... + 3573.

Almost surely, 2^3685625 is an apocalyptic number.

It is an amenable number.

3685625 is a deficient number, since it is larger than the sum of its proper divisors (920713).

3685625 is an frugal number, since it uses more digits than its factorization.

3685625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5917 (or 5902 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 3685625 is about 1919.7981664748. The cubic root of 3685625 is about 154.4674753402.

The spelling of 3685625 in words is "three million, six hundred eighty-five thousand, six hundred twenty-five".