561227843 has 8 divisors (see below), whose sum is σ = 612503040. Its totient is φ = 509995080.

The previous prime is 561227839. The next prime is 561227861. The reversal of 561227843 is 348722165.

It is a happy number.

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 561227843 - 2² = 561227839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561227797 and 561227806.

It is not an unprimeable number, because it can be changed into a prime (561227543) 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 7 ways as a sum of consecutive naturals, for example, 21218 + ... + 39656.

It is an arithmetic number, because the mean of its divisors is an integer number (76562880).

Almost surely, 2^561227843 is an apocalyptic number.

561227843 is a deficient number, since it is larger than the sum of its proper divisors (51275197).

561227843 is a wasteful number, since it uses less digits than its factorization.

561227843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21217.

The product of its digits is 80640, while the sum is 38.

The square root of 561227843 is about 23690.2478458964. The cubic root of 561227843 is about 824.8590358481.

The spelling of 561227843 in words is "five hundred sixty-one million, two hundred twenty-seven thousand, eight hundred forty-three".