3628685 has 4 divisors (see below), whose sum is σ = 4354428. Its totient is φ = 2902944.

The previous prime is 3628679. The next prime is 3628697. The reversal of 3628685 is 5868263.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1087849 + 2540836 = 1043^2 + 1594^2 .

It is a cyclic number.

It is not a de Polignac number, because 3628685 - 2⁶ = 3628621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362864 + ... + 362873.

It is an arithmetic number, because the mean of its divisors is an integer number (1088607).

Almost surely, 2^3628685 is an apocalyptic number.

It is an amenable number.

3628685 is a deficient number, since it is larger than the sum of its proper divisors (725743).

3628685 is an equidigital number, since it uses as much as digits as its factorization.

3628685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725742.

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

The square root of 3628685 is about 1904.9107590646. The cubic root of 3628685 is about 153.6678764722.

The spelling of 3628685 in words is "three million, six hundred twenty-eight thousand, six hundred eighty-five".