260642771 has 2 divisors, whose sum is σ = 260642772. Its totient is φ = 260642770.

The previous prime is 260642747. The next prime is 260642773. The reversal of 260642771 is 177246062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260642771 - 2¹⁰ = 260641747 is a prime.

Together with 260642773, 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 (260642773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130321385 + 130321386.

It is an arithmetic number, because the mean of its divisors is an integer number (130321386).

Almost surely, 2^260642771 is an apocalyptic number.

260642771 is a deficient number, since it is larger than the sum of its proper divisors (1).

260642771 is an equidigital number, since it uses as much as digits as its factorization.

260642771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 260642771 is about 16144.4346757637. The cubic root of 260642771 is about 638.7759571408.

The spelling of 260642771 in words is "two hundred sixty million, six hundred forty-two thousand, seven hundred seventy-one".