2640959 has 2 divisors, whose sum is σ = 2640960. Its totient is φ = 2640958.

The previous prime is 2640947. The next prime is 2640973. The reversal of 2640959 is 9590462.

2640959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2640959 - 2¹² = 2636863 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2640919) 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, 1320479 + 1320480.

It is an arithmetic number, because the mean of its divisors is an integer number (1320480).

2^2640959 is an apocalyptic number.

2640959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640959 is an equidigital number, since it uses as much as digits as its factorization.

2640959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 2640959 is about 1625.1027659813. The cubic root of 2640959 is about 138.2251976648.

The spelling of 2640959 in words is "two million, six hundred forty thousand, nine hundred fifty-nine".