3670565 has 4 divisors (see below), whose sum is σ = 4404684. Its totient is φ = 2936448.

The previous prime is 3670561. The next prime is 3670571. The reversal of 3670565 is 5650763.

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 743044 + 2927521 = 862^2 + 1711^2 .

It is a cyclic number.

It is not a de Polignac number, because 3670565 - 2² = 3670561 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3670561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367052 + ... + 367061.

It is an arithmetic number, because the mean of its divisors is an integer number (1101171).

Almost surely, 2^3670565 is an apocalyptic number.

It is an amenable number.

3670565 is a deficient number, since it is larger than the sum of its proper divisors (734119).

3670565 is an equidigital number, since it uses as much as digits as its factorization.

3670565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734118.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 3670565 is about 1915.8718641913. The cubic root of 3670565 is about 154.2567959306.

The spelling of 3670565 in words is "three million, six hundred seventy thousand, five hundred sixty-five".