3636689 has 4 divisors (see below), whose sum is σ = 4156224. Its totient is φ = 3117156.

The previous prime is 3636683. The next prime is 3636709. The reversal of 3636689 is 9866363.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3636689 - 2¹⁶ = 3571153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3636683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259757 + ... + 259770.

It is an arithmetic number, because the mean of its divisors is an integer number (1039056).

Almost surely, 2^3636689 is an apocalyptic number.

It is an amenable number.

3636689 is a deficient number, since it is larger than the sum of its proper divisors (519535).

3636689 is an equidigital number, since it uses as much as digits as its factorization.

3636689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519534.

The product of its digits is 139968, while the sum is 41.

The square root of 3636689 is about 1907.0104876481. The cubic root of 3636689 is about 153.7807782039.

The spelling of 3636689 in words is "three million, six hundred thirty-six thousand, six hundred eighty-nine".