3632865 has 16 divisors (see below), whose sum is σ = 5937408. Its totient is φ = 1895936.

The previous prime is 3632833. The next prime is 3632879. The reversal of 3632865 is 5682363.

It is a cyclic number.

It is not a de Polignac number, because 3632865 - 2⁵ = 3632833 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 3³ + 6 + 3⁴ + 2 + 8 + 6⁸ + 5⁹ .

3632865 is a lucky number.

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, 1872 + ... + 3281.

It is an arithmetic number, because the mean of its divisors is an integer number (371088).

Almost surely, 2^3632865 is an apocalyptic number.

It is an amenable number.

3632865 is a deficient number, since it is larger than the sum of its proper divisors (2304543).

3632865 is a wasteful number, since it uses less digits than its factorization.

3632865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208.

The product of its digits is 25920, while the sum is 33.

The square root of 3632865 is about 1906.0076075399. The cubic root of 3632865 is about 153.7268588346.

The spelling of 3632865 in words is "three million, six hundred thirty-two thousand, eight hundred sixty-five".