561598 has 8 divisors (see below), whose sum is σ = 846792. Its totient is φ = 279336.

The previous prime is 561559. The next prime is 561599. The reversal of 561598 is 895165.

561598 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165 + ... + 1072.

It is an arithmetic number, because the mean of its divisors is an integer number (105849).

2⁵⁶¹⁵⁹⁸ is an apocalyptic number.

561598 is a deficient number, since it is larger than the sum of its proper divisors (285194).

561598 is a wasteful number, since it uses less digits than its factorization.

561598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466.

The product of its digits is 10800, while the sum is 34.

The square root of 561598 is about 749.3984254053. The cubic root of 561598 is about 82.5040340850.

The spelling of 561598 in words is "five hundred sixty-one thousand, five hundred ninety-eight".