5661204 has 24 divisors (see below), whose sum is σ = 13987008. Its totient is φ = 1776000.

The previous prime is 5661203. The next prime is 5661209. The reversal of 5661204 is 4021665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13672 + ... + 14079.

It is an arithmetic number, because the mean of its divisors is an integer number (582792).

Almost surely, 2^5661204 is an apocalyptic number.

It is an amenable number.

5661204 is an abundant number, since it is smaller than the sum of its proper divisors (8325804).

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

5661204 is a wasteful number, since it uses less digits than its factorization.

5661204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27775 (or 27773 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 5661204 is about 2379.3284766925. The cubic root of 5661204 is about 178.2254014460.

Adding to 5661204 its reverse (4021665), we get a palindrome (9682869).

It can be divided in two parts, 566 and 1204, that added together give a triangular number (1770 = T₅₉).

The spelling of 5661204 in words is "five million, six hundred sixty-one thousand, two hundred four".