2740889 has 2 divisors, whose sum is σ = 2740890. Its totient is φ = 2740888.

The previous prime is 2740867. The next prime is 2740919. The reversal of 2740889 is 9880472.

2740889 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 can be written as a sum of positive squares in only one way, i.e., 2088025 + 652864 = 1445^2 + 808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2740889 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2740189) 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, 1370444 + 1370445.

It is an arithmetic number, because the mean of its divisors is an integer number (1370445).

2^2740889 is an apocalyptic number.

It is an amenable number.

2740889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2740889 is an equidigital number, since it uses as much as digits as its factorization.

2740889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 2740889 is about 1655.5630462172. The cubic root of 2740889 is about 139.9470718293.

The spelling of 2740889 in words is "two million, seven hundred forty thousand, eight hundred eighty-nine".