3665289 has 8 divisors (see below), whose sum is σ = 4897152. Its totient is φ = 2438480.

The previous prime is 3665279. The next prime is 3665293. The reversal of 3665289 is 9825663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3665289 - 2⁸ = 3665033 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 6⁷ + 6⁸ + 5⁷ + 2¹⁵ + 8³ + 9 .

It is a Curzon number.

3665289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3665239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024 + ... + 2894.

It is an arithmetic number, because the mean of its divisors is an integer number (612144).

Almost surely, 2^3665289 is an apocalyptic number.

It is an amenable number.

3665289 is a deficient number, since it is larger than the sum of its proper divisors (1231863).

3665289 is a wasteful number, since it uses less digits than its factorization.

3665289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527.

The product of its digits is 77760, while the sum is 39.

The square root of 3665289 is about 1914.4944502401. The cubic root of 3665289 is about 154.1828519003.

The spelling of 3665289 in words is "three million, six hundred sixty-five thousand, two hundred eighty-nine".