2660291 has 2 divisors, whose sum is σ = 2660292. Its totient is φ = 2660290.

The previous prime is 2660237. The next prime is 2660303. The reversal of 2660291 is 1920662.

2660291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2660291 - 2¹⁸ = 2398147 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2660291.

It is not a weakly prime, because it can be changed into another prime (2660591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330145 + 1330146.

It is an arithmetic number, because the mean of its divisors is an integer number (1330146).

2^2660291 is an apocalyptic number.

2660291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660291 is an equidigital number, since it uses as much as digits as its factorization.

2660291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2660291 is about 1631.0398523641. The cubic root of 2660291 is about 138.5616506672.

The spelling of 2660291 in words is "two million, six hundred sixty thousand, two hundred ninety-one".