3665056 has 24 divisors (see below), whose sum is σ = 7355124. Its totient is φ = 1797120.

The previous prime is 3665041. The next prime is 3665087. The reversal of 3665056 is 6505663.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3549456 + 115600 = 1884^2 + 340^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616 + ... + 2776.

Almost surely, 2^3665056 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 3665056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3677562).

3665056 is an abundant number, since it is smaller than the sum of its proper divisors (3690068).

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

3665056 is a wasteful number, since it uses less digits than its factorization.

3665056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224 (or 2216 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 3665056 is about 1914.4335976993. The cubic root of 3665056 is about 154.1795847304.

The spelling of 3665056 in words is "three million, six hundred sixty-five thousand, fifty-six".