561743 has 8 divisors (see below), whose sum is σ = 691488. Its totient is φ = 444384.

The previous prime is 561733. The next prime is 561761. The reversal of 561743 is 347165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561743 - 2¹⁰ = 560719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561703) 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, 2996 + ... + 3177.

It is an arithmetic number, because the mean of its divisors is an integer number (86436).

2⁵⁶¹⁷⁴³ is an apocalyptic number.

561743 is a deficient number, since it is larger than the sum of its proper divisors (129745).

561743 is a wasteful number, since it uses less digits than its factorization.

561743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6193.

The product of its digits is 2520, while the sum is 26.

The square root of 561743 is about 749.4951634267. The cubic root of 561743 is about 82.5111340957.

The spelling of 561743 in words is "five hundred sixty-one thousand, seven hundred forty-three".