561747 has 8 divisors (see below), whose sum is σ = 763344. Its totient is φ = 367328.

The previous prime is 561733. The next prime is 561761. The reversal of 561747 is 747165.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (561733) and next prime (561761).

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 561747 - 2¹⁶ = 496211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561767) 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, 1608 + ... + 1925.

It is an arithmetic number, because the mean of its divisors is an integer number (95418).

2⁵⁶¹⁷⁴⁷ is an apocalyptic number.

561747 is a deficient number, since it is larger than the sum of its proper divisors (201597).

561747 is a wasteful number, since it uses less digits than its factorization.

561747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3589.

The product of its digits is 5880, while the sum is 30.

The square root of 561747 is about 749.4978318848. The cubic root of 561747 is about 82.5113299407.

The spelling of 561747 in words is "five hundred sixty-one thousand, seven hundred forty-seven".