3561204 has 12 divisors (see below), whose sum is σ = 8309504. Its totient is φ = 1187064.

The previous prime is 3561203. The next prime is 3561209. The reversal of 3561204 is 4021653.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148372 + ... + 148395.

Almost surely, 2^3561204 is an apocalyptic number.

It is an amenable number.

3561204 is an abundant number, since it is smaller than the sum of its proper divisors (4748300).

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

3561204 is a wasteful number, since it uses less digits than its factorization.

3561204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296774 (or 296772 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3561204 is about 1887.1152588011. The cubic root of 3561204 is about 152.7093460973.

Adding to 3561204 its reverse (4021653), we get a palindrome (7582857).

The spelling of 3561204 in words is "three million, five hundred sixty-one thousand, two hundred four".