3612565 has 16 divisors (see below), whose sum is σ = 4979520. Its totient is φ = 2488320.

The previous prime is 3612547. The next prime is 3612577. The reversal of 3612565 is 5652163.

It is not a de Polignac number, because 3612565 - 2⁷ = 3612437 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684 + ... + 2773.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

Almost surely, 2^3612565 is an apocalyptic number.

It is an amenable number.

3612565 is a deficient number, since it is larger than the sum of its proper divisors (1366955).

3612565 is a wasteful number, since it uses less digits than its factorization.

3612565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492.

The product of its digits is 5400, while the sum is 28.

The square root of 3612565 is about 1900.6748801413. The cubic root of 3612565 is about 153.4399882831.

It can be divided in two parts, 361 and 2565, that added together give a triangular number (2926 = T₇₆).

The spelling of 3612565 in words is "three million, six hundred twelve thousand, five hundred sixty-five".