5561784 has 48 divisors (see below), whose sum is σ = 15626520. Its totient is φ = 1853280.

The previous prime is 5561779. The next prime is 5561819. The reversal of 5561784 is 4871655.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 514 + ... + 3374.

Almost surely, 2^5561784 is an apocalyptic number.

5561784 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5561784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7813260).

5561784 is an abundant number, since it is smaller than the sum of its proper divisors (10064736).

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

5561784 is a wasteful number, since it uses less digits than its factorization.

5561784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882 (or 2866 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 5561784 is about 2358.3434864328. The cubic root of 5561784 is about 177.1759239099.

The spelling of 5561784 in words is "five million, five hundred sixty-one thousand, seven hundred eighty-four".