560639 has 2 divisors, whose sum is σ = 560640. Its totient is φ = 560638.

The previous prime is 560621. The next prime is 560641. The reversal of 560639 is 936065.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-560639 is a prime.

Together with 560641, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (560669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280319 + 280320.

It is an arithmetic number, because the mean of its divisors is an integer number (280320).

2⁵⁶⁰⁶³⁹ is an apocalyptic number.

560639 is a deficient number, since it is larger than the sum of its proper divisors (1).

560639 is an equidigital number, since it uses as much as digits as its factorization.

560639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 560639 is about 748.7583054631. The cubic root of 560639 is about 82.4570452851.

The spelling of 560639 in words is "five hundred sixty thousand, six hundred thirty-nine".