561308 has 12 divisors (see below), whose sum is σ = 1071672. Its totient is φ = 255120.

The previous prime is 561307. The next prime is 561313. The reversal of 561308 is 803165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561307) 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, 6335 + ... + 6422.

It is an arithmetic number, because the mean of its divisors is an integer number (89306).

2⁵⁶¹³⁰⁸ is an apocalyptic number.

It is an amenable number.

561308 is a deficient number, since it is larger than the sum of its proper divisors (510364).

561308 is a wasteful number, since it uses less digits than its factorization.

561308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12772 (or 12770 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 561308 is about 749.2049118899. The cubic root of 561308 is about 82.4898303963.

The spelling of 561308 in words is "five hundred sixty-one thousand, three hundred eight".