3669559 has 4 divisors (see below), whose sum is σ = 3710880. Its totient is φ = 3628240.

The previous prime is 3669557. The next prime is 3669583. The reversal of 3669559 is 9559663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9559663 = 53 ⋅180371.

It is a cyclic number.

It is not a de Polignac number, because 3669559 - 2¹ = 3669557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3669553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20527 + ... + 20704.

It is an arithmetic number, because the mean of its divisors is an integer number (927720).

Almost surely, 2^3669559 is an apocalyptic number.

3669559 is a deficient number, since it is larger than the sum of its proper divisors (41321).

3669559 is an equidigital number, since it uses as much as digits as its factorization.

3669559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41320.

The product of its digits is 218700, while the sum is 43.

The square root of 3669559 is about 1915.6093025458. The cubic root of 3669559 is about 154.2427021407.

The spelling of 3669559 in words is "three million, six hundred sixty-nine thousand, five hundred fifty-nine".