561700 has 36 divisors (see below), whose sum is σ = 1257732. Its totient is φ = 217600.

The previous prime is 561667. The next prime is 561703. The reversal of 561700 is 7165.

It can be written as a sum of positive squares in 6 ways, for example, as 77284 + 484416 = 278^2 + 696^2 .

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (561703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4032 + ... + 4168.

It is an arithmetic number, because the mean of its divisors is an integer number (34937).

2⁵⁶¹⁷⁰⁰ is an apocalyptic number.

561700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628866).

561700 is an abundant number, since it is smaller than the sum of its proper divisors (696032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561700 is a wasteful number, since it uses less digits than its factorization.

561700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 561700 is about 749.4664769021. The cubic root of 561700 is about 82.5090287027.

Adding to 561700 its reverse (7165), we get a palindrome (568865).

The spelling of 561700 in words is "five hundred sixty-one thousand, seven hundred".