561284 has 6 divisors (see below), whose sum is σ = 982254. Its totient is φ = 280640.

The previous prime is 561277. The next prime is 561307. The reversal of 561284 is 482165.

It can be written as a sum of positive squares in only one way, i.e., 521284 + 40000 = 722^2 + 200^2 .

It is a d-powerful number, because it can be written as 5³ + 6 + 2¹⁹ + 1 + 8⁵ + 4⁶ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 561284.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70157 + ... + 70164.

It is an arithmetic number, because the mean of its divisors is an integer number (163709).

2⁵⁶¹²⁸⁴ is an apocalyptic number.

It is an amenable number.

561284 is a deficient number, since it is larger than the sum of its proper divisors (420970).

561284 is a wasteful number, since it uses less digits than its factorization.

561284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140325 (or 140323 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 561284 is about 749.1888947388. The cubic root of 561284 is about 82.4886546994.

The spelling of 561284 in words is "five hundred sixty-one thousand, two hundred eighty-four".