561734 has 8 divisors (see below), whose sum is σ = 865488. Its totient is φ = 273240.

The previous prime is 561733. The next prime is 561761. The reversal of 561734 is 437165.

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

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 561734.

It is not an unprimeable number, because it can be changed into a prime (561733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3722 + ... + 3869.

It is an arithmetic number, because the mean of its divisors is an integer number (108186).

2⁵⁶¹⁷³⁴ is an apocalyptic number.

561734 is a deficient number, since it is larger than the sum of its proper divisors (303754).

561734 is a wasteful number, since it uses less digits than its factorization.

561734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7630.

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

The square root of 561734 is about 749.4891593612. The cubic root of 561734 is about 82.5106934409.

Adding to 561734 its reverse (437165), we get a palindrome (998899).

The spelling of 561734 in words is "five hundred sixty-one thousand, seven hundred thirty-four".