3785664 has 28 divisors (see below), whose sum is σ = 10016744. Its totient is φ = 1261824.

The previous prime is 3785651. The next prime is 3785669. The reversal of 3785664 is 4665873.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3785669) 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, 9667 + ... + 10050.

Almost surely, 2^3785664 is an apocalyptic number.

It is an amenable number.

3785664 is an abundant number, since it is smaller than the sum of its proper divisors (6231080).

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

3785664 is a wasteful number, since it uses less digits than its factorization.

3785664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19732 (or 19722 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 3785664 is about 1945.6782878986. The cubic root of 3785664 is about 155.8525892175.

The spelling of 3785664 in words is "three million, seven hundred eighty-five thousand, six hundred sixty-four".