260543779 has 2 divisors, whose sum is σ = 260543780. Its totient is φ = 260543778.

The previous prime is 260543737. The next prime is 260543783. The reversal of 260543779 is 977345062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260543779 - 2¹⁷ = 260412707 is a prime.

It is not a weakly prime, because it can be changed into another prime (266543779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130271889 + 130271890.

It is an arithmetic number, because the mean of its divisors is an integer number (130271890).

Almost surely, 2^260543779 is an apocalyptic number.

260543779 is a deficient number, since it is larger than the sum of its proper divisors (1).

260543779 is an equidigital number, since it uses as much as digits as its factorization.

260543779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 260543779 is about 16141.3685603173. The cubic root of 260543779 is about 638.6950779661.

The spelling of 260543779 in words is "two hundred sixty million, five hundred forty-three thousand, seven hundred seventy-nine".