3549656 has 48 divisors (see below), whose sum is σ = 7740600. Its totient is φ = 1520640.

The previous prime is 3549649. The next prime is 3549673. The reversal of 3549656 is 6569453.

3549656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

Its product of digits (97200) is a multiple of the sum of its prime divisors (225).

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 11 ways as a sum of consecutive naturals, for example, 18296 + ... + 18488.

Almost surely, 2^3549656 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 3549656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3870300).

3549656 is an abundant number, since it is smaller than the sum of its proper divisors (4190944).

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

3549656 is a wasteful number, since it uses less digits than its factorization.

3549656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 225 counting only the distinct ones).

The product of its digits is 97200, while the sum is 38.

The square root of 3549656 is about 1884.0530778086. The cubic root of 3549656 is about 152.5441026256.

The spelling of 3549656 in words is "three million, five hundred forty-nine thousand, six hundred fifty-six".