260960891 has 2 divisors, whose sum is σ = 260960892. Its totient is φ = 260960890.

The previous prime is 260960831. The next prime is 260960893. The reversal of 260960891 is 198069062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260960891 - 2⁶ = 260960827 is a prime.

It is a Sophie Germain prime.

Together with 260960893, 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 (260960893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130480445 + 130480446.

It is an arithmetic number, because the mean of its divisors is an integer number (130480446).

Almost surely, 2^260960891 is an apocalyptic number.

260960891 is a deficient number, since it is larger than the sum of its proper divisors (1).

260960891 is an equidigital number, since it uses as much as digits as its factorization.

260960891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 260960891 is about 16154.2839828944. The cubic root of 260960891 is about 639.0357313261.

The spelling of 260960891 in words is "two hundred sixty million, nine hundred sixty thousand, eight hundred ninety-one".