3651664 has 20 divisors (see below), whose sum is σ = 7383456. Its totient is φ = 1746272.

The previous prime is 3651653. The next prime is 3651671. The reversal of 3651664 is 4661563.

3651664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4594 + ... + 5329.

Almost surely, 2^3651664 is an apocalyptic number.

It is an amenable number.

3651664 is an abundant number, since it is smaller than the sum of its proper divisors (3731792).

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

3651664 is a wasteful number, since it uses less digits than its factorization.

3651664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9954 (or 9948 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 3651664 is about 1910.9327565354. The cubic root of 3651664 is about 153.9915664128.

The spelling of 3651664 in words is "three million, six hundred fifty-one thousand, six hundred sixty-four".