560891 has 2 divisors, whose sum is σ = 560892. Its totient is φ = 560890.

The previous prime is 560887. The next prime is 560893. The reversal of 560891 is 198065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 560891 - 2² = 560887 is a prime.

Together with 560893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (560893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280445 + 280446.

It is an arithmetic number, because the mean of its divisors is an integer number (280446).

2⁵⁶⁰⁸⁹¹ is an apocalyptic number.

560891 is a deficient number, since it is larger than the sum of its proper divisors (1).

560891 is an equidigital number, since it uses as much as digits as its factorization.

560891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 560891 is about 748.9265651584. The cubic root of 560891 is about 82.4693978940.

The spelling of 560891 in words is "five hundred sixty thousand, eight hundred ninety-one".