3659656 has 64 divisors (see below), whose sum is σ = 9233280. Its totient is φ = 1313280.

The previous prime is 3659651. The next prime is 3659657. The reversal of 3659656 is 6569563.

It is not an unprimeable number, because it can be changed into a prime (3659651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7780 + ... + 8236.

It is an arithmetic number, because the mean of its divisors is an integer number (144270).

Almost surely, 2^3659656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3659656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4616640).

3659656 is an abundant number, since it is smaller than the sum of its proper divisors (5573624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3659656 is a wasteful number, since it uses less digits than its factorization.

3659656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 490 counting only the distinct ones).

The product of its digits is 145800, while the sum is 40.

The square root of 3659656 is about 1913.0227390180. The cubic root of 3659656 is about 154.1038260891.

The spelling of 3659656 in words is "three million, six hundred fifty-nine thousand, six hundred fifty-six".