3652685 has 4 divisors (see below), whose sum is σ = 4383228. Its totient is φ = 2922144.

The previous prime is 3652679. The next prime is 3652697. The reversal of 3652685 is 5862563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5862563 = 7 ⋅837509.

It can be written as a sum of positive squares in 2 ways, for example, as 491401 + 3161284 = 701^2 + 1778^2 .

It is a cyclic number.

It is not a de Polignac number, because 3652685 - 2⁴ = 3652669 is a prime.

It is a d-powerful number, because it can be written as 3⁹ + 6³ + 5 + 2⁵ + 6⁸ + 8 + 5⁹ .

It is a Duffinian number.

It is a Curzon 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, 365264 + ... + 365273.

It is an arithmetic number, because the mean of its divisors is an integer number (1095807).

Almost surely, 2^3652685 is an apocalyptic number.

It is an amenable number.

3652685 is a deficient number, since it is larger than the sum of its proper divisors (730543).

3652685 is an equidigital number, since it uses as much as digits as its factorization.

3652685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730542.

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

The square root of 3652685 is about 1911.1998848891. The cubic root of 3652685 is about 154.0059170156.

The spelling of 3652685 in words is "three million, six hundred fifty-two thousand, six hundred eighty-five".