560677781 has 2 divisors, whose sum is σ = 560677782. Its totient is φ = 560677780.

The previous prime is 560677769. The next prime is 560677787. The reversal of 560677781 is 187776065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 447999556 + 112678225 = 21166^2 + 10615^2 .

It is a cyclic number.

It is not a de Polignac number, because 560677781 - 2¹⁴ = 560661397 is a prime.

It is a super-2 number, since 2×560677781² = 628719148214167922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (560677787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280338890 + 280338891.

It is an arithmetic number, because the mean of its divisors is an integer number (280338891).

Almost surely, 2^560677781 is an apocalyptic number.

It is an amenable number.

560677781 is a deficient number, since it is larger than the sum of its proper divisors (1).

560677781 is an equidigital number, since it uses as much as digits as its factorization.

560677781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 560677781 is about 23678.6355392366. The cubic root of 560677781 is about 824.5894650433.

The spelling of 560677781 in words is "five hundred sixty million, six hundred seventy-seven thousand, seven hundred eighty-one".