3549663 has 20 divisors (see below), whose sum is σ = 5712168. Its totient is φ = 2183760.

The previous prime is 3549649. The next prime is 3549673. The reversal of 3549663 is 3669453.

It is not a de Polignac number, because 3549663 - 2⁴ = 3549647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3549673) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 633 + ... + 2738.

Almost surely, 2^3549663 is an apocalyptic number.

3549663 is a deficient number, since it is larger than the sum of its proper divisors (2162505).

3549663 is a wasteful number, since it uses less digits than its factorization.

3549663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396 (or 3387 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 3549663 is about 1884.0549355048. The cubic root of 3549663 is about 152.5442028989.

The spelling of 3549663 in words is "three million, five hundred forty-nine thousand, six hundred sixty-three".