3654664 has 16 divisors (see below), whose sum is σ = 7379820. Its totient is φ = 1686720.

The previous prime is 3654647. The next prime is 3654671. The reversal of 3654664 is 4664563.

It can be written as a sum of positive squares in 2 ways, for example, as 3452164 + 202500 = 1858^2 + 450^2 .

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, 17467 + ... + 17674.

Almost surely, 2^3654664 is an apocalyptic number.

It is an amenable number.

3654664 is an abundant number, since it is smaller than the sum of its proper divisors (3725156).

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

3654664 is a wasteful number, since it uses less digits than its factorization.

3654664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35160 (or 35156 counting only the distinct ones).

The product of its digits is 51840, while the sum is 34.

The square root of 3654664 is about 1911.7175523597. The cubic root of 3654664 is about 154.0337251151.

The spelling of 3654664 in words is "three million, six hundred fifty-four thousand, six hundred sixty-four".