3636959 has 4 divisors (see below), whose sum is σ = 3647616. Its totient is φ = 3626304.

The previous prime is 3636947. The next prime is 3636973. The reversal of 3636959 is 9596363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9596363 = 7 ⋅1370909.

It is a cyclic number.

It is not a de Polignac number, because 3636959 - 2⁴ = 3636943 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 (3636359) 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, 4799 + ... + 5504.

It is an arithmetic number, because the mean of its divisors is an integer number (911904).

Almost surely, 2^3636959 is an apocalyptic number.

3636959 is a deficient number, since it is larger than the sum of its proper divisors (10657).

3636959 is a wasteful number, since it uses less digits than its factorization.

3636959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10656.

The product of its digits is 131220, while the sum is 41.

The square root of 3636959 is about 1907.0812777645. The cubic root of 3636959 is about 153.7845838434.

The spelling of 3636959 in words is "three million, six hundred thirty-six thousand, nine hundred fifty-nine".