3612865 has 16 divisors (see below), whose sum is σ = 4541760. Its totient is φ = 2756160.

The previous prime is 3612853. The next prime is 3612883. The reversal of 3612865 is 5682163.

It is not a de Polignac number, because 3612865 - 2⁷ = 3612737 is a prime.

Its product of digits (8640) is a multiple of the sum of its prime divisors (432).

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, 10750 + ... + 11080.

It is an arithmetic number, because the mean of its divisors is an integer number (283860).

Almost surely, 2^3612865 is an apocalyptic number.

It is an amenable number.

3612865 is a deficient number, since it is larger than the sum of its proper divisors (928895).

3612865 is a wasteful number, since it uses less digits than its factorization.

3612865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its digits is 8640, while the sum is 31.

The square root of 3612865 is about 1900.7537978392. The cubic root of 3612865 is about 153.4442355628. Note that the first 3 decimals are identical.

The spelling of 3612865 in words is "three million, six hundred twelve thousand, eight hundred sixty-five".